sci.electronics.repair - 25 new messages in 8 topics - digest

sci.electronics.repair
http://groups.google.com/group/sci.electronics.repair?hl=en

sci.electronics.repair@googlegroups.com

Today's topics:

* 100v--> 10V Trans. on 120V - 7 messages, 4 authors
http://groups.google.com/group/sci.electronics.repair/t/c8528fdeff78820d?hl=en
* RAC Portable Power Station, need DC adaptor spec - 1 messages, 1 author
http://groups.google.com/group/sci.electronics.repair/t/b105b15b5ad9d933?hl=en
* low cost thermocouple DAQ that works with ubuntu linux tia sal22 - 12
messages, 6 authors
http://groups.google.com/group/sci.electronics.repair/t/6df4cca829179f26?hl=en
* looking for DAQ that measures PPM tia sal22 - 1 messages, 1 author
http://groups.google.com/group/sci.electronics.repair/t/8f7517bc0bc14e6f?hl=en
* Mallika sharavath 's exposing Videos - 1 messages, 1 author
http://groups.google.com/group/sci.electronics.repair/t/9b4f942e58c90198?hl=en
* Old Sony Compact Disc Player skips a lot - 1 messages, 1 author
http://groups.google.com/group/sci.electronics.repair/t/4ab08acdc5fca7b8?hl=en
* american beer inferier? - 1 messages, 1 author
http://groups.google.com/group/sci.electronics.repair/t/79cf21563e25cfa2?hl=en
* instructor solution manual for Engineering Mechanics - Statics by Boresi,
Schmidt - 1 messages, 1 author
http://groups.google.com/group/sci.electronics.repair/t/9168d8b2c77c7edd?hl=en

==============================================================================
TOPIC: 100v--> 10V Trans. on 120V
http://groups.google.com/group/sci.electronics.repair/t/c8528fdeff78820d?hl=en
==============================================================================

== 1 of 7 ==
Date: Fri, Dec 3 2010 10:33 pm
From: David Nebenzahl


On 12/3/2010 10:30 PM Wild_Bill spake thus:

> Having a DC output from a transformer is obviously more common that you
> think.
>
> The old style automotive ignition coil (autotransformer) outputs HV DC.
>
> That's one example, and it is a transformer although not the kind used for a
> game system power source, and the output isn't rectified.

OK, you win.

On a technicality.


--
How To Access Wikileaks

These sites are still up as of 12/3/10:

http://wikileaks.de
http://wikileaks.fi
http://wikileaks.nl
http://wikileaks.eu
http://wikileaks.pl

And these IP addresses can be used:

http://213.251.145.96/
http://88.80.13.160/


== 2 of 7 ==
Date: Sat, Dec 4 2010 5:03 am
From: "Brenda Ann"


"Wild_Bill" wrote in message
news:IdlKo.442218$pX3.215194@en-nntp-11.dc1.easynews.com...

Having a DC output from a transformer is obviously more common that you
think.

The old style automotive ignition coil (autotransformer) outputs HV DC.

That's one example, and it is a transformer although not the kind used for a
game system power source, and the output isn't rectified.

-----------------------------------------------------------------------------------------------------------------------------------

Technically, the input of those coils is AC (pulsating DC, more like square
waves than sine waves, but still AC). The output is DC because it only
outputs on the down cycle of the input (as a result of the collapsing
magnetic field). Even still, the output has some AC characteristics, such as
the slow decay time as opposed to the fast rise time as the current is
applied to the primary. The capacitor across the points helps slow the decay
even further, keeping the voltage peak higher, longer.

== 3 of 7 ==
Date: Sat, Dec 4 2010 5:04 am
From: "Mark Zacharias"


"Wild_Bill" <wb_wildbill@XSPAMyahoo.com> wrote in message
news:IdlKo.442218$pX3.215194@en-nntp-11.dc1.easynews.com...
> Having a DC output from a transformer is obviously more common that you
> think.
>
> The old style automotive ignition coil (autotransformer) outputs HV DC.
>
> That's one example, and it is a transformer although not the kind used for
> a game system power source, and the output isn't rectified.
>
> --
> Cheers,
> WB
> .............
>
>
> "David Nebenzahl" <nobody@but.us.chickens> wrote in message
> news:4cf988fd$0$2409$822641b3@news.adtechcomputers.com...
>>
>> How do you get DC out of a transformer? Must be a really special one ...
>>
>> Of course, it's impossible to tell from the O.P. whether the thing in
>> question is really a transformer (outputs AC) or a power supply (outputs
>> DC).
>>
>> To the OP, it would help us to know. What does it say on the wall wart?
>> Should say something like "10 VAC" or "10 VDC" or some such.
>


Lot's of "wall-warts" have a rectifier diode and capacitor in the same
little box. More and more they actually have little switching regulators in
there. Those are more efficient and can supply much more current, but they
usually don't last much more than about 15 months because they use such
crappy little capacitors in them, and they are virtually unserviceable.

Mark Z.

== 4 of 7 ==
Date: Sat, Dec 4 2010 10:48 am
From: David Nebenzahl


On 12/4/2010 5:04 AM Mark Zacharias spake thus:

> "Wild_Bill" <wb_wildbill@XSPAMyahoo.com> wrote in message
> news:IdlKo.442218$pX3.215194@en-nntp-11.dc1.easynews.com...
>
>> Having a DC output from a transformer is obviously more common that
>> you think.
>>
>> The old style automotive ignition coil (autotransformer) outputs HV
>> DC.
>>
>> That's one example, and it is a transformer although not the kind
>> used for a game system power source, and the output isn't
>> rectified.
>>
>> "David Nebenzahl" <nobody@but.us.chickens> wrote in message
>> news:4cf988fd$0$2409$822641b3@news.adtechcomputers.com...
>>>
>>> How do you get DC out of a transformer? Must be a really special
>>> one ...
>>>
>>> Of course, it's impossible to tell from the O.P. whether the
>>> thing in question is really a transformer (outputs AC) or a power
>>> supply (outputs DC).
>>>
>>> To the OP, it would help us to know. What does it say on the wall
>>> wart? Should say something like "10 VAC" or "10 VDC" or some
>>> such.
>
> Lot's of "wall-warts" have a rectifier diode and capacitor in the same
> little box. More and more they actually have little switching regulators in
> there. Those are more efficient and can supply much more current, but they
> usually don't last much more than about 15 months because they use such
> crappy little capacitors in them, and they are virtually unserviceable.

Yes, we know that. My point is that a lot of wall warts are just what
the O.P. called them--transformers--and that we really have no idea what
his is, based on what he posted.

More informations, please.


--
How To Access Wikileaks

These sites are still up as of 12/3/10:

http://wikileaks.de
http://wikileaks.fi
http://wikileaks.nl
http://wikileaks.eu
http://wikileaks.pl

And these IP addresses can be used:

http://213.251.145.96/
http://88.80.13.160/


== 5 of 7 ==
Date: Sat, Dec 4 2010 11:53 am
From: "Michael Kennedy"

"David Nebenzahl" <nobody@but.us.chickens> wrote in message
news:4cf988fd$0$2409$822641b3@news.adtechcomputers.com...
> On 12/3/2010 1:08 PM Meat Plow spake thus:
>
>> On Sat, 04 Dec 2010 03:17:59 +0900, Michael Kennedy wrote:
>>
>>> I was wonderin if someone could educate me on Transformers. Here I have
>>> a Japanese Nintendo which has a 100V to 10V wall wart iorn transformer.
>>> Am Im I correct in guessing that this transformer is going to output 12V
>>> on 120V power instead of 10V it would on 100V?
>>>
>>> Not being in the USA at the moment I can't just check it and see what
>>
>> If the supply is rectified and well regulated it will output 10vdc or
>> there abouts.
>
> How do you get DC out of a transformer? Must be a really special one ...
>
> Of course, it's impossible to tell from the O.P. whether the thing in
> question is really a transformer (outputs AC) or a power supply (outputs
> DC).
>
> To the OP, it would help us to know. What does it say on the wall wart?
> Should say something like "10 VAC" or "10 VDC" or some such.
>
>

DC 10V, although I doubt there is much inside of this thing when it comes to
electronics aside from a couple of diodes or a full wave bridge.

== 6 of 7 ==
Date: Sat, Dec 4 2010 12:04 pm
From: "Michael Kennedy"

"David Nebenzahl" <nobody@but.us.chickens> wrote in message
news:4cfa8cbb$0$2411$822641b3@news.adtechcomputers.com...
> On 12/4/2010 5:04 AM Mark Zacharias spake thus:
>
>> "Wild_Bill" <wb_wildbill@XSPAMyahoo.com> wrote in message
>> news:IdlKo.442218$pX3.215194@en-nntp-11.dc1.easynews.com...
>>
>>> Having a DC output from a transformer is obviously more common that
>>> you think.
>>>
>>> The old style automotive ignition coil (autotransformer) outputs HV
>>> DC.
>>>
>>> That's one example, and it is a transformer although not the kind
>>> used for a game system power source, and the output isn't
>>> rectified.
>>>
>>> "David Nebenzahl" <nobody@but.us.chickens> wrote in message
>>> news:4cf988fd$0$2409$822641b3@news.adtechcomputers.com...
>>>>
>>>> How do you get DC out of a transformer? Must be a really special
>>>> one ...
>>>>
>>>> Of course, it's impossible to tell from the O.P. whether the
>>>> thing in question is really a transformer (outputs AC) or a power
>>>> supply (outputs DC).
>>>>
>>>> To the OP, it would help us to know. What does it say on the wall
>>>> wart? Should say something like "10 VAC" or "10 VDC" or some
>>>> such.
>>
>> Lot's of "wall-warts" have a rectifier diode and capacitor in the same
>> little box. More and more they actually have little switching regulators
>> in there. Those are more efficient and can supply much more current, but
>> they usually don't last much more than about 15 months because they use
>> such crappy little capacitors in them, and they are virtually
>> unserviceable.
>
> Yes, we know that. My point is that a lot of wall warts are just what the
> O.P. called them--transformers--and that we really have no idea what his
> is, based on what he posted.
>
> More informations, please.
>

Quote: Michael Kennedy
>Here I have a Japanese Nintendo which has a 100V to 10V wall wart iorn
transformer.

/quote


Sorry I somehow forgot to write core a between iorn and transformer.
It is a 10vdc Iorn core transformer wall wart 50/60Hz 850mA. Not a switcher.
Most likely it has 4 diodes a fuse and possibly a small cap insde of it
along side the transformer. The regulation is inside of the nintendo itself.

== 7 of 7 ==
Date: Sat, Dec 4 2010 2:17 pm
From: David Nebenzahl


On 12/4/2010 12:04 PM Michael Kennedy spake thus:

> "David Nebenzahl" <nobody@but.us.chickens> wrote in message
> news:4cfa8cbb$0$2411$822641b3@news.adtechcomputers.com...
>
>> On 12/4/2010 5:04 AM Mark Zacharias spake thus:
>>
>>> "Wild_Bill" <wb_wildbill@XSPAMyahoo.com> wrote in message
>>> news:IdlKo.442218$pX3.215194@en-nntp-11.dc1.easynews.com...
>>>
>>>> Having a DC output from a transformer is obviously more common
>>>> that you think.
>>>>
>>>> The old style automotive ignition coil (autotransformer)
>>>> outputs HV DC.
>>>>
>>>> That's one example, and it is a transformer although not the
>>>> kind used for a game system power source, and the output isn't
>>>> rectified.
>>>>
>>>> "David Nebenzahl" <nobody@but.us.chickens> wrote in message
>>>> news:4cf988fd$0$2409$822641b3@news.adtechcomputers.com...
>>>>>
>>>>> How do you get DC out of a transformer? Must be a really
>>>>> special one ...
>>>>>
>>>>> Of course, it's impossible to tell from the O.P. whether the
>>>>> thing in question is really a transformer (outputs AC) or a
>>>>> power supply (outputs DC).
>>>>>
>>>>> To the OP, it would help us to know. What does it say on the
>>>>> wall wart? Should say something like "10 VAC" or "10 VDC" or
>>>>> some such.
>>>
>>> Lot's of "wall-warts" have a rectifier diode and capacitor in the
>>> same little box. More and more they actually have little
>>> switching regulators in there. Those are more efficient and can
>>> supply much more current, but they usually don't last much more
>>> than about 15 months because they use such crappy little
>>> capacitors in them, and they are virtually unserviceable.
>>
>> Yes, we know that. My point is that a lot of wall warts are just
>> what the O.P. called them--transformers--and that we really have no
>> idea what his is, based on what he posted.
>>
>> More informations, please.
>
> Quote: Michael Kennedy
>>Here I have a Japanese Nintendo which has a 100V to 10V wall wart iorn
> transformer.
>
> /quote
>
> Sorry I somehow forgot to write core a between iorn and transformer.
> It is a 10vdc Iorn core transformer wall wart 50/60Hz 850mA. Not a switcher.
> Most likely it has 4 diodes a fuse and possibly a small cap insde of it
> along side the transformer. The regulation is inside of the nintendo itself.

You don't understand.

No biggie; apparently you're a newbie. That's OK.

A transformer (and *all* transformers that operate on line
frequency--50/60 Hz--are iron-core, so no need to specify that) converts
AC to AC.

If the wall wart contains diodes, then it's not just a transformer; it's
a DC power supply. (A transformer is part of it.)

So apparently what you have is a DC power supply, judging from the "10
vdc" above.


--
How To Access Wikileaks

These sites are still up as of 12/3/10:

http://wikileaks.de
http://wikileaks.fi
http://wikileaks.nl
http://wikileaks.eu
http://wikileaks.pl

And these IP addresses can be used:

http://213.251.145.96/
http://88.80.13.160/

==============================================================================
TOPIC: RAC Portable Power Station, need DC adaptor spec
http://groups.google.com/group/sci.electronics.repair/t/b105b15b5ad9d933?hl=en
==============================================================================

== 1 of 1 ==
Date: Sat, Dec 4 2010 3:10 am
From: Ron


On 03/12/2010 17:17, Dave Plowman (News) wrote:

> I get emails from both Aldi and Lidl showing their offers of the week.
> With some of them you have to get there early.
>

That's because bloody market traders are queuing at the door come
opening time to snag all the best stuff!

Ron


==============================================================================
TOPIC: low cost thermocouple DAQ that works with ubuntu linux tia sal22
http://groups.google.com/group/sci.electronics.repair/t/6df4cca829179f26?hl=en
==============================================================================

== 1 of 12 ==
Date: Sat, Dec 4 2010 5:23 am
From: N0Spam@daqarta.com (Bob Masta)


On Fri, 03 Dec 2010 11:01:33 -0500, Phil Hobbs
<pcdhSpamMeSenseless@electrooptical.net> wrote:

<snip>
>I'm not the worst offender, though. A lot of the explanations you hear
>about physics have as much merit as the Friday afternoon stock market
>guy 'explaining' what happened on Wall Street that week. The idea that
>an electret mic is a variety of capacitance mic is one example... <snip>

OK, I'll bite: What's wrong with explaining electrets as
permanently polarized capacitance mics? Are you saying
that this is *not* the basic concept, or that it just
doesn't go deep enough to do justice?

Like the various "electricity as a flowing liquid"
analogies, sometimes a flawed analogy can nevertheless help
get a basic concept across... as long as it's clear that it
is an analogy and not an equivalence.

Best regards


Bob Masta

DAQARTA v5.10
Data AcQuisition And Real-Time Analysis
www.daqarta.com
Scope, Spectrum, Spectrogram, Sound Level Meter
Frequency Counter, FREE Signal Generator
Pitch Track, Pitch-to-MIDI
DaqMusic - FREE MUSIC, Forever!
(Some assembly required)
Science (and fun!) with your sound card!


== 2 of 12 ==
Date: Sat, Dec 4 2010 6:57 am
From: Phil Hobbs


Bob Masta wrote:
> On Fri, 03 Dec 2010 11:01:33 -0500, Phil Hobbs
> <pcdhSpamMeSenseless@electrooptical.net> wrote:
>
> <snip>
>> I'm not the worst offender, though. A lot of the explanations you hear
>> about physics have as much merit as the Friday afternoon stock market
>> guy 'explaining' what happened on Wall Street that week. The idea that
>> an electret mic is a variety of capacitance mic is one example...<snip>
>
> OK, I'll bite: What's wrong with explaining electrets as
> permanently polarized capacitance mics? Are you saying
> that this is *not* the basic concept, or that it just
> doesn't go deep enough to do justice?

If you have a surface with a nonzero net charge density on its surface
(so that it produces an electric field in the air), a small current will
flow due to air ions and surface water films. Therefore no object can
produce an external field forever without a power source.

Electrets are just poled piezoelectrics.

Cheers

Phil Hobbs

When you
>
> Like the various "electricity as a flowing liquid"
> analogies, sometimes a flawed analogy can nevertheless help
> get a basic concept across... as long as it's clear that it
> is an analogy and not an equivalence.
>
> Best regards
>
>
> Bob Masta

--
Dr Philip C D Hobbs
Principal
ElectroOptical Innovations
55 Orchard Rd
Briarcliff Manor NY 10510
845-480-2058

email: hobbs (atsign) electrooptical (period) net
http://electrooptical.net


== 3 of 12 ==
Date: Sat, Dec 4 2010 7:34 am
From: Jan Panteltje


On a sunny day (Sat, 04 Dec 2010 09:57:04 -0500) it happened Phil Hobbs
<pcdhSpamMeSenseless@electrooptical.net> wrote in
<L_qdnREbXpBfy2fRnZ2dnUVZ_sSdnZ2d@supernews.com>:

>Bob Masta wrote:
>> On Fri, 03 Dec 2010 11:01:33 -0500, Phil Hobbs
>> <pcdhSpamMeSenseless@electrooptical.net> wrote:
>>
>> <snip>
>>> I'm not the worst offender, though. A lot of the explanations you hear
>>> about physics have as much merit as the Friday afternoon stock market
>>> guy 'explaining' what happened on Wall Street that week. The idea that
>>> an electret mic is a variety of capacitance mic is one example...<snip>
>>
>> OK, I'll bite: What's wrong with explaining electrets as
>> permanently polarized capacitance mics? Are you saying
>> that this is *not* the basic concept, or that it just
>> doesn't go deep enough to do justice?
>
>If you have a surface with a nonzero net charge density on its surface
>(so that it produces an electric field in the air), a small current will
>flow due to air ions and surface water films. Therefore no object can
>produce an external field forever without a power source.

A current can *only* flow if that object itself is a conductor.


>Electrets are just poled piezoelectrics.

Piezo mikes use the BENDING of a piezo crystal to generate voltage,
An electret is in no way related to a piezo mike, if that is what you are implying.

Electret is much more like a capacitor mike, and that also goes for impedance.
The old piezo mikes were not very good, maybe speech only, because the forces needed to bend the crystal.,
non linearity.
The electret can give extremely high quality, as hardly any force is needed to move the membrane.

There were piezo pick up elements for vinyl record players, piezo mikes, piezo 'crystal' earphones,
most of these later replaced by much more 'HiFi' dynamic stuff.


And 'forever' is something that modern electronics tries to avoid, for sales reasons I suppose.
That said I have seem 30 year old electrets working.
Considering the 100 years for most FLASH based firmware, I'd say electrets last forever.

It is like your view on LDRs, you probably have never used one.

== 4 of 12 ==
Date: Sat, Dec 4 2010 7:47 am
From: Sum Ting Wong


On Sat, 04 Dec 2010 13:23:01 GMT, N0Spam@daqarta.com (Bob Masta) wrote:

>On Fri, 03 Dec 2010 11:01:33 -0500, Phil Hobbs
><pcdhSpamMeSenseless@electrooptical.net> wrote:
>
><snip>
>>I'm not the worst offender, though. A lot of the explanations you hear
>>about physics have as much merit as the Friday afternoon stock market
>>guy 'explaining' what happened on Wall Street that week. The idea that
>>an electret mic is a variety of capacitance mic is one example... <snip>
>
>OK, I'll bite: What's wrong with explaining electrets as
>permanently polarized capacitance mics? Are you saying
>that this is *not* the basic concept, or that it just
>doesn't go deep enough to do justice?
>
>Like the various "electricity as a flowing liquid"
>analogies, sometimes a flawed analogy can nevertheless help
>get a basic concept across... as long as it's clear that it
>is an analogy and not an equivalence.
>
>Best regards
>
>
>Bob Masta
>
> DAQARTA v5.10
> Data AcQuisition And Real-Time Analysis
> www.daqarta.com
>Scope, Spectrum, Spectrogram, Sound Level Meter
> Frequency Counter, FREE Signal Generator
> Pitch Track, Pitch-to-MIDI
> DaqMusic - FREE MUSIC, Forever!
> (Some assembly required)
> Science (and fun!) with your sound card!


Well, that was masta-fooly stated...


What goes up, must come down...

Spinning wheels, got to go 'round...


== 5 of 12 ==
Date: Sat, Dec 4 2010 7:57 am
From: TheQuickBrownFox


On Mon, 29 Nov 2010 16:36:56 GMT, ratullloch_delthis
<ratullloch_delthis@gmail.com> wrote:

>Greetings All
>
>I'm looking for a recommendation for a low cost thermocouple DAQ that works with ubuntu linux.
>Can someone recommend one. I'm trying to record temperture measurements over time.
>tia sal22


Here is one way...

http://www.linuxjournal.com/article/10809?page=0,0

Another is to buy a cheap $30 Harbor Freight multimeter that has a
serial or USB port on it, and then hack at the output streams from within
Ubuntu, if there is no actual Linux app.

Usually, there are only windows applets for that stuff, but you could
run that in a window within Ubuntu as well. If DOS applets are available,
you could then simply use DOSBox, if it can see the serial or USB
ports.


== 6 of 12 ==
Date: Sat, Dec 4 2010 8:18 am
From: I AM THAT I AM


On Wed, 01 Dec 2010 20:24:09 -0500, Phil Hobbs
<pcdhSpamMeSenseless@electrooptical.net> wrote:

>Bob Masta wrote:
>> On Tue, 30 Nov 2010 13:11:18 -0500, Phil Hobbs
>> <pcdhSpamMeSenseless@electrooptical.net> wrote:
>>
>>> Glen Walpert wrote:
>>>> On Mon, 29 Nov 2010 16:36:56 +0000, ratullloch_delthis wrote:
>>>>
>>>>> Greetings All
>>>>>
>>>>> I'm looking for a recommendation for a low cost thermocouple DAQ that
>>>>> works with ubuntu linux. Can someone recommend one. I'm trying to
>>>>> record temperture measurements over time. tia sal22
>>>>
>>>> http://www.mccdaq.com/daq-software/Linux-Support.aspx
>>>>
>>>> Single channel thermocouple to USB with linux support $99, multiple
>>>> channels more $.
>>>
>>> Thermocouples are really really horrible temperature sensors--almost as
>>> bad as ICs. Their advantages are small size, relatively low cost, and
>>> (potentially) high speed, but their disadvantage is that it's really
>>> hard to get good measurements.
>>>
>>> One reason for this is thermal conduction down the leads (which is a big
>>> problem for most temperature sensors). There's a worse one, though:
>>> due to their very low sensitivity, thermocouples are extremely
>>> vulnerable to errors caused by offset drift in the circuitry. See
>>> Figure 20.3 on P. 803 at http://electrooptical.net/www/book/draftthermal.pdf
>>
>> Not to mention that they involve a reference junction for
>> which you must know the temperature. Unless you have an ice
>> bath handy, this involves an independent non-thermocouple
>> sensor like a thermistor, diode, or IC. So just use that
>> instead! (Unless you need really high temperatures.)
>>
>> One good thing about TCs is that they don't need typically
>> calibration... they are supposed to conform to a standard
>> for the TC type (J, K, R, S etc). You just measure the
>> output voltage, correct for the reference junction
>> temperature, and look up the temperature for that voltage.
>> Accuracy is typically +/-2 degrees C. But the voltages are
>> really small: 1 mv or less at room temperature (0.10 mV
>> for R or S types).
>>
>> I'd say, save the thermocouples for the really hot stuff.
>> For "normal" temperatures (say, freezing to boiling water
>> ranges), you can get much better precision and accuracy, not
>> to mention convenience, from an IC.
>
>If all you need is a degree or two's accuracy near room temperature,
>almost any method will work. IC temperature sensors are generally
>fairly putrid--slow, inaccurate, and noisy.
>
>Cheers
>
>Phil Hobbs


Resistor bolometer 2 mm sq, 2 mm behind probably a Ge window (in a
little to-39 pkg) at whatever needed distance behind a half inch diameter
plastic Fresnel lens with some nice read circuitry and LCD display with
read and hold mode, etc., and a little laser focal point spotter.

Pretty damned good accuracy from every test I could put it through,
from new batteries, all the way down to both cells being dead... the
damned thing reads. (obviously the data cell is not completely dead at
that point)

$20 at Harbor Freight.

http://www.harborfreight.com/infrared-thermometer-93984.html


== 7 of 12 ==
Date: Sat, Dec 4 2010 9:32 am
From: Phil Hobbs


Jan Panteltje wrote:
> On a sunny day (Sat, 04 Dec 2010 09:57:04 -0500) it happened Phil Hobbs
> <pcdhSpamMeSenseless@electrooptical.net> wrote in
> <L_qdnREbXpBfy2fRnZ2dnUVZ_sSdnZ2d@supernews.com>:
>
>> Bob Masta wrote:
>>> On Fri, 03 Dec 2010 11:01:33 -0500, Phil Hobbs
>>> <pcdhSpamMeSenseless@electrooptical.net> wrote:
>>>
>>> <snip>
>>>> I'm not the worst offender, though. A lot of the explanations you hear
>>>> about physics have as much merit as the Friday afternoon stock market
>>>> guy 'explaining' what happened on Wall Street that week. The idea that
>>>> an electret mic is a variety of capacitance mic is one example...<snip>
>>>
>>> OK, I'll bite: What's wrong with explaining electrets as
>>> permanently polarized capacitance mics? Are you saying
>>> that this is *not* the basic concept, or that it just
>>> doesn't go deep enough to do justice?
>>
>> If you have a surface with a nonzero net charge density on its surface
>> (so that it produces an electric field in the air), a small current will
>> flow due to air ions and surface water films. Therefore no object can
>> produce an external field forever without a power source.
>
> A current can *only* flow if that object itself is a conductor.

Air _is_ a conductor, just not a very good one. It contains mobile ions
and electrically charged dust. A positively charged surface will
attract negative ions and repel positive ones, which means that a small
current flows. You don't need much charge to neutralize any plausible
surface charge density. Charge 10 pF to 50 volts--neutralizing it takes
14 fA for an hour, or 0.19 fA for a month. We're talking resistances of
the order of 200 petaohms (300 million gigohms) to keep it charged for a
month. Do the arithmetic.

The only reason permanent magnets don't have the same problem is that
there are no magnetic monopoles in nature. If there were a lot of those
about, they'd all stick to the ends of a magnet and neutralize the
external B field in just the same way that electrons and ions do for the
E field in electrets.


>> Electrets are just poled piezoelectrics.
>
> Piezo mikes use the BENDING of a piezo crystal to generate voltage,
> An electret is in no way related to a piezo mike, if that is what you are implying.

Wrong, sorry--YCLIU. They're made of poled PVDF, which is both
piezoelectric and pyroelectric. I've used it a fair amount myself--my
Footprints sensors use 9-um PVDF. Piezoelectric response is a tensor
quantity--for instance when you put a voltage across a normal AT-cut
quartz crystal, it produces a transverse shear (i.e. the cross-section
of the plate becomes rhombic in one axis). There's no bending involved.
Tuning fork crystals do use bending, but for a general piezoelectric
material, any coefficient of strain can produce an E field in any
direction. Amorphous or polycrystalline materials like PVDF have
simpler behaviour than single crystals.

>
> Electret is much more like a capacitor mike, and that also goes for impedance.
> The old piezo mikes were not very good, maybe speech only, because the forces needed to bend the crystal.,
> non linearity.
> The electret can give extremely high quality, as hardly any force is needed to move the membrane.
>
Sure, but that has nothing to do with the physics, which isn't at all
hard--about eighth grade level, i.e. rubbing balloons on your hair or
using a van de Graaf generator.

> There were piezo pick up elements for vinyl record players, piezo mikes, piezo 'crystal' earphones,
> most of these later replaced by much more 'HiFi' dynamic stuff.

The old crystal and ceramic mics used Rochelle salt or PZT or barium
titanate or that sort of thing. They have lots of mechanical resonances
because they're stiff and heavy compared with a 9-micron PVDF film.
Rochelle salt is also fragile and hygroscopic, so it takes some babying
if you want decent life.

> And 'forever' is something that modern electronics tries to avoid, for sales reasons I suppose.
> That said I have seem 30 year old electrets working.
> Considering the 100 years for most FLASH based firmware, I'd say electrets last forever.

If they don't get hot, their internal polarization lasts many years. My
10-year-old Footprints sensors still work. But I was talking about the
external field, i.e. in the air, which decays in a few minutes at most,
just like when you stick a balloon to the ceiling after rubbing it on
your hair. Capacitance mics work by modulating the plate separation of
an air-dielectric capacitor that is held at constant voltage. No bias
==> no change in CV with plate separation ==> no current flow ==> no
signal. If you rip an electret mic apart, you'll find that it is
metallized on both sides, and the signal is taken between the plates.

It really isn't a capacitance microphone, although its audio
characteristics are somewhat similar. The plates don't move together,
and there's no net field anyway, even if they did. The physics is the
change in the electric polarization due to strain in the material--i.e.
a poled piezoelectric.

But you demonstrate my point that the stockmarket-style explanation
refuses to die. (It was all due to profit taking/program
trading/unwinding short positions/uncertainty about leading economic
indicators....)

>
> It is like your view on LDRs, you probably have never used one.

;)

Cheers

Phil Hobbs


--
Dr Philip C D Hobbs
Principal
ElectroOptical Innovations
55 Orchard Rd
Briarcliff Manor NY 10510
845-480-2058

email: hobbs (atsign) electrooptical (period) net
http://electrooptical.net


== 8 of 12 ==
Date: Sat, Dec 4 2010 9:54 am
From: Jan Panteltje


On a sunny day (Sat, 04 Dec 2010 12:32:34 -0500) it happened Phil Hobbs
<pcdhSpamMeSenseless@electrooptical.net> wrote in
<1L2dncQWso2o5mfRnZ2dnUVZ_omdnZ2d@supernews.com>:

>signal. If you rip an electret mic apart, you'll find that it is
>metallized on both sides, and the signal is taken between the plates.
>
>It really isn't a capacitance microphone, although its audio
>characteristics are somewhat similar. The plates don't move together,
>and there's no net field anyway, even if they did. The physics is the
>change in the electric polarization due to strain in the material--i.e.
>a poled piezoelectric.

<Snipped PhD confusion>

I do not think that is correct.
http://en.wikipedia.org/wiki/Electret_microphone
Scroll to the bottom, there are 3 types of electret mikes described.
The second one described has the electret film fitted to the backplate, where it does *NOT MOVE AT ALL*.
The third one has the film on the inside front cover where it does *NOT MOVE EITHER*.
That sort of nullifies your argument about strain, except on your mind of course.


<insert clue here>

== 9 of 12 ==
Date: Sat, Dec 4 2010 11:06 am
From: Phil Hobbs


I AM THAT I AM wrote:
> On Wed, 01 Dec 2010 20:24:09 -0500, Phil Hobbs
> <pcdhSpamMeSenseless@electrooptical.net> wrote:
>
>> Bob Masta wrote:
>>> On Tue, 30 Nov 2010 13:11:18 -0500, Phil Hobbs
>>> <pcdhSpamMeSenseless@electrooptical.net> wrote:
>>>
>>>> Glen Walpert wrote:
>>>>> On Mon, 29 Nov 2010 16:36:56 +0000, ratullloch_delthis wrote:
>>>>>
>>>>>> Greetings All
>>>>>>
>>>>>> I'm looking for a recommendation for a low cost thermocouple DAQ that
>>>>>> works with ubuntu linux. Can someone recommend one. I'm trying to
>>>>>> record temperture measurements over time. tia sal22
>>>>>
>>>>> http://www.mccdaq.com/daq-software/Linux-Support.aspx
>>>>>
>>>>> Single channel thermocouple to USB with linux support $99, multiple
>>>>> channels more $.
>>>>
>>>> Thermocouples are really really horrible temperature sensors--almost as
>>>> bad as ICs. Their advantages are small size, relatively low cost, and
>>>> (potentially) high speed, but their disadvantage is that it's really
>>>> hard to get good measurements.
>>>>
>>>> One reason for this is thermal conduction down the leads (which is a big
>>>> problem for most temperature sensors). There's a worse one, though:
>>>> due to their very low sensitivity, thermocouples are extremely
>>>> vulnerable to errors caused by offset drift in the circuitry. See
>>>> Figure 20.3 on P. 803 at http://electrooptical.net/www/book/draftthermal.pdf
>>>
>>> Not to mention that they involve a reference junction for
>>> which you must know the temperature. Unless you have an ice
>>> bath handy, this involves an independent non-thermocouple
>>> sensor like a thermistor, diode, or IC. So just use that
>>> instead! (Unless you need really high temperatures.)
>>>
>>> One good thing about TCs is that they don't need typically
>>> calibration... they are supposed to conform to a standard
>>> for the TC type (J, K, R, S etc). You just measure the
>>> output voltage, correct for the reference junction
>>> temperature, and look up the temperature for that voltage.
>>> Accuracy is typically +/-2 degrees C. But the voltages are
>>> really small: 1 mv or less at room temperature (0.10 mV
>>> for R or S types).
>>>
>>> I'd say, save the thermocouples for the really hot stuff.
>>> For "normal" temperatures (say, freezing to boiling water
>>> ranges), you can get much better precision and accuracy, not
>>> to mention convenience, from an IC.
>>
>> If all you need is a degree or two's accuracy near room temperature,
>> almost any method will work. IC temperature sensors are generally
>> fairly putrid--slow, inaccurate, and noisy.
>>
>> Cheers
>>
>> Phil Hobbs
>
>
> Resistor bolometer 2 mm sq, 2 mm behind probably a Ge window (in a
> little to-39 pkg) at whatever needed distance behind a half inch diameter
> plastic Fresnel lens with some nice read circuitry and LCD display with
> read and hold mode, etc., and a little laser focal point spotter.
>
> Pretty damned good accuracy from every test I could put it through,
> from new batteries, all the way down to both cells being dead... the
> damned thing reads. (obviously the data cell is not completely dead at
> that point)
>
> $20 at Harbor Freight.
>
> http://www.harborfreight.com/infrared-thermometer-93984.html

Some of those things are pretty useful--microbolometers have come a
really long way. Consistency is not the same as accuracy, though, and
all sensors relying on radiation are (a) vulnerable to emissivity
variations, and (2) slow, at least compared to an RTD or thermistor (or
thermocouple).

Temperature control lives and dies by loop bandwidth, just like every
other control system. Slow sensors ==> poor control. Inaccurate
sensors ==>poor control. Fast, accurate sensors plus intelligent sensor
placement, insulation to reduce thermal forcing, thermal grounding of
leads, .... ==>good control.

Cheers

Phil Hobbs

--
Dr Philip C D Hobbs
Principal
ElectroOptical Innovations
55 Orchard Rd
Briarcliff Manor NY 10510
845-480-2058

email: hobbs (atsign) electrooptical (period) net
http://electrooptical.net


== 10 of 12 ==
Date: Sat, Dec 4 2010 11:09 am
From: Phil Hobbs


Jan Panteltje wrote:
> On a sunny day (Sat, 04 Dec 2010 12:32:34 -0500) it happened Phil Hobbs
> <pcdhSpamMeSenseless@electrooptical.net> wrote in
> <1L2dncQWso2o5mfRnZ2dnUVZ_omdnZ2d@supernews.com>:
>
>> signal. If you rip an electret mic apart, you'll find that it is
>> metallized on both sides, and the signal is taken between the plates.
>>
>> It really isn't a capacitance microphone, although its audio
>> characteristics are somewhat similar. The plates don't move together,
>> and there's no net field anyway, even if they did. The physics is the
>> change in the electric polarization due to strain in the material--i.e.
>> a poled piezoelectric.
>
> <Snipped PhD confusion>
>
> I do not think that is correct.
> http://en.wikipedia.org/wiki/Electret_microphone
> Scroll to the bottom, there are 3 types of electret mikes described.
> The second one described has the electret film fitted to the backplate, where it does *NOT MOVE AT ALL*.
> The third one has the film on the inside front cover where it does *NOT MOVE EITHER*.
> That sort of nullifies your argument about strain, except on your mind of course.
>
>
> <insert clue here>
>
>

We're now in violent agreement, I see. I didn't mean "move in the same
way", but "move closer together", i.e. the spacing doesn't change, so it
can't be a capacitance mic. Clumsily put, admittedly, but the rest of
the argument should have removed the ambiguity. Electret mics are not
capacitance mics.

Cheers

Phil Hobbs

--
Dr Philip C D Hobbs
Principal
ElectroOptical Innovations
55 Orchard Rd
Briarcliff Manor NY 10510
845-480-2058

email: hobbs (atsign) electrooptical (period) net
http://electrooptical.net


== 11 of 12 ==
Date: Sat, Dec 4 2010 11:54 am
From: I AM THAT I AM


On Sat, 04 Dec 2010 14:06:43 -0500, Phil Hobbs
<pcdhSpamMeSenseless@electrooptical.net> wrote:

>I AM THAT I AM wrote:
>> On Wed, 01 Dec 2010 20:24:09 -0500, Phil Hobbs
>> <pcdhSpamMeSenseless@electrooptical.net> wrote:
>>
>>> Bob Masta wrote:
>>>> On Tue, 30 Nov 2010 13:11:18 -0500, Phil Hobbs
>>>> <pcdhSpamMeSenseless@electrooptical.net> wrote:
>>>>
>>>>> Glen Walpert wrote:
>>>>>> On Mon, 29 Nov 2010 16:36:56 +0000, ratullloch_delthis wrote:
>>>>>>
>>>>>>> Greetings All
>>>>>>>
>>>>>>> I'm looking for a recommendation for a low cost thermocouple DAQ that
>>>>>>> works with ubuntu linux. Can someone recommend one. I'm trying to
>>>>>>> record temperture measurements over time. tia sal22
>>>>>>
>>>>>> http://www.mccdaq.com/daq-software/Linux-Support.aspx
>>>>>>
>>>>>> Single channel thermocouple to USB with linux support $99, multiple
>>>>>> channels more $.
>>>>>
>>>>> Thermocouples are really really horrible temperature sensors--almost as
>>>>> bad as ICs. Their advantages are small size, relatively low cost, and
>>>>> (potentially) high speed, but their disadvantage is that it's really
>>>>> hard to get good measurements.
>>>>>
>>>>> One reason for this is thermal conduction down the leads (which is a big
>>>>> problem for most temperature sensors). There's a worse one, though:
>>>>> due to their very low sensitivity, thermocouples are extremely
>>>>> vulnerable to errors caused by offset drift in the circuitry. See
>>>>> Figure 20.3 on P. 803 at http://electrooptical.net/www/book/draftthermal.pdf
>>>>
>>>> Not to mention that they involve a reference junction for
>>>> which you must know the temperature. Unless you have an ice
>>>> bath handy, this involves an independent non-thermocouple
>>>> sensor like a thermistor, diode, or IC. So just use that
>>>> instead! (Unless you need really high temperatures.)
>>>>
>>>> One good thing about TCs is that they don't need typically
>>>> calibration... they are supposed to conform to a standard
>>>> for the TC type (J, K, R, S etc). You just measure the
>>>> output voltage, correct for the reference junction
>>>> temperature, and look up the temperature for that voltage.
>>>> Accuracy is typically +/-2 degrees C. But the voltages are
>>>> really small: 1 mv or less at room temperature (0.10 mV
>>>> for R or S types).
>>>>
>>>> I'd say, save the thermocouples for the really hot stuff.
>>>> For "normal" temperatures (say, freezing to boiling water
>>>> ranges), you can get much better precision and accuracy, not
>>>> to mention convenience, from an IC.
>>>
>>> If all you need is a degree or two's accuracy near room temperature,
>>> almost any method will work. IC temperature sensors are generally
>>> fairly putrid--slow, inaccurate, and noisy.
>>>
>>> Cheers
>>>
>>> Phil Hobbs
>>
>>
>> Resistor bolometer 2 mm sq, 2 mm behind probably a Ge window (in a
>> little to-39 pkg) at whatever needed distance behind a half inch diameter
>> plastic Fresnel lens with some nice read circuitry and LCD display with
>> read and hold mode, etc., and a little laser focal point spotter.
>>
>> Pretty damned good accuracy from every test I could put it through,
>> from new batteries, all the way down to both cells being dead... the
>> damned thing reads. (obviously the data cell is not completely dead at
>> that point)
>>
>> $20 at Harbor Freight.
>>
>> http://www.harborfreight.com/infrared-thermometer-93984.html
>
>Some of those things are pretty useful--microbolometers have come a
>really long way. Consistency is not the same as accuracy, though, and
>all sensors relying on radiation are (a) vulnerable to emissivity
>variations, and (2) slow, at least compared to an RTD or thermistor (or
>thermocouple).
>
>Temperature control lives and dies by loop bandwidth, just like every
>other control system. Slow sensors ==> poor control. Inaccurate
>sensors ==>poor control. Fast, accurate sensors plus intelligent sensor
>placement, insulation to reduce thermal forcing, thermal grounding of
>leads, .... ==>good control.
>
>Cheers
>
>Phil Hobbs


IR sensors are faster, and that includes a bolometer. There is zero
settling time, and emissivity will not be a factor, because just like
your sensor, this would be "placed" the same every time. Accuracy is
dead on, if it was calibrated right in the first place as the circuitry
is usually VERY linear and very accurate if any linearization corrections
are needed, they are usually hard wired in. I'll bet that it even has
ambient compensation built into a single custom MCU/do-it-all chip.
Things we had to engineer in with discreet components back when the
finished product was $500.

Well, it was precision lab instrumentation outputs. All the Harbor
Freight item has is a readout.

I'll bet that it can be relied on to plus or minus 0.3 degrees though.

They range from about 1.5 us to about half a second in response time.

It probably takes a typical TC junction a tenth of a second to settle
through with a 'bead' size of about .75 to 1 mm.


== 12 of 12 ==
Date: Sat, Dec 4 2010 1:02 pm
From: I AM THAT I AM


On Tue, 30 Nov 2010 17:38:20 -0600, Jon Elson <jmelson@wustl.edu> wrote:

>On 11/29/2010 10:36 AM, ratullloch_delthis wrote:
>> Greetings All
>>
>> I'm looking for a recommendation for a low cost thermocouple DAQ that works with ubuntu linux.
>> Can someone recommend one. I'm trying to record temperture measurements over time.
>> tia sal22
>>
>
>Do you really have to use thermocouples? They are the hardest way to
>measure temperature. I prever the Analog Devices AD590 series, I think
>there is also a plastic-package version, the AD592. They are a
>2-terminal sensor, where current is proportional to absolute
>temperature. So, room temperature is 20 C or 293 K, so it conducts a
>current of 29.3 uA.
>
>Jon

They can have long soak times, lengthening response time. If that is a
factor.

IR is much faster and just as accurate and repeatable, and especially
so if the usage is meant to look at the same target constantly.

Why folks shy away from IR thermometry is beyond me.

==============================================================================
TOPIC: looking for DAQ that measures PPM tia sal22
http://groups.google.com/group/sci.electronics.repair/t/8f7517bc0bc14e6f?hl=en
==============================================================================

== 1 of 1 ==
Date: Sat, Dec 4 2010 5:42 am
From: N0Spam@daqarta.com (Bob Masta)


On Fri, 03 Dec 2010 13:37:28 +0000, Martin Brown
<|||newspam|||@nezumi.demon.co.uk> wrote:

>On 03/12/2010 13:26, Bob Masta wrote:
>> On Thu, 02 Dec 2010 15:36:33 GMT, ratullloch_delthis
>> <ratullloch_delthis@gmail.com> wrote:
>>
>>> Greetings all
>>>
>>> I'm looking for a DAQ that will measure PPM (particles per million) over time, can anyone recomend one?
>
>Not really clear here what you are asking for.
>DACs output voltages, and ADCs measure them.
>
>Old Solatron 7060 voltmeter secondhand, provided you don't want absolute
>calibration will just about do it on the 10v range (as will some of the
>later models but they are usually more expensive).
>
>It is actually rather hard to get ppm low noise ADCs to behave reliably
>at 6 sig figs and you need reference gear to qualify and calibrate it.

Depending on what he really wants, the OP may want to look
into averaging methods. I have a series of articles on
synchronous waveform signal averaging, starting at:

<http://www.daqarta.com/tm01.htm>

The articles are about recovering a repeating waveform that
is buried in noise, but the noise reduction and bit
resolution principles apply equally to simpler measurements,
if that's what the OP is looking for.

Basically, for every doubling of the number of samples
averaged, the noise goes down by 3 dB and the resolution is
increased by 1 bit. Note that this assumes that any drift
in the ADC is of much longer duration than the thing you are
looking for.

Interestingly, you can make an "ADC" that has only a *single
bit* and get high-resolution results using averaging. Here
you actually use noise (either in the signal being measured,
or deliberately added as "dither") to improve the
resolutiuon. See:

<http://www.daqarta.com/tm07.htm>

Best regards,


Bob Masta

DAQARTA v5.10
Data AcQuisition And Real-Time Analysis
www.daqarta.com
Scope, Spectrum, Spectrogram, Sound Level Meter
Frequency Counter, FREE Signal Generator
Pitch Track, Pitch-to-MIDI
DaqMusic - FREE MUSIC, Forever!
(Some assembly required)
Science (and fun!) with your sound card!

==============================================================================
TOPIC: Mallika sharavath 's exposing Videos
http://groups.google.com/group/sci.electronics.repair/t/9b4f942e58c90198?hl=en
==============================================================================

== 1 of 1 ==
Date: Sat, Dec 4 2010 7:03 am
From: paypal cash


Mallika sharavath 's exposing Videos Leaked At http://beachbabies.co.cc

and What a real sex feelings shown in bollywood films with Sanjaydutt.
real scheens Real

Emosition still has shown to favorites in Mumbai. She is Lover of All
Audion's in theater.

==============================================================================
TOPIC: Old Sony Compact Disc Player skips a lot
http://groups.google.com/group/sci.electronics.repair/t/4ab08acdc5fca7b8?hl=en
==============================================================================

== 1 of 1 ==
Date: Sat, Dec 4 2010 9:34 am
From: "Angelo Campanella"

> "Clyde" <mkdrummeyNOSPAMPLEASE@hotmail.com> wrote in message
> news:PEwBo.55458$pr5.9936@newsfe08.ams2...
>> The laser assembly in older Sony units is usually a KSS150A or KSS210A
>> (number visible on assembly panel). These tend to fail, I used to replace
>> these often in even then new CD units. You may even find one knocking
>> around as a lot of the budget brands also used this pick-up. Failing that
>> this particular optical unit is cheap to buy, have a look on eBay.

When it runs, I see no light at all. Shouldit be red or bue? There are
infrared style lasers that run around 1.1 microns wavelength (visible is 1/2
micron).

So what do I look for to buy a replacement? and if I get one, how do I
install it?

>> To me it does sound like laser failure. As far as the pots are concerned,
>> I've never had much luck altering these, you really need a laser power
>> meter, and you have to be very careful as the laser diode is easily
>> damaged.

If it is vsible light, it shoud be quite evident.

Another thing, this sensor appears to position its lens right up against
the CD disk... If it's spaced away, it an't be more than a millimeter or so.

I mic'd the disk thicknesses. They are all 41 to 42 mils thick, about
1.05mm.

Ange

==============================================================================
TOPIC: american beer inferier?
http://groups.google.com/group/sci.electronics.repair/t/79cf21563e25cfa2?hl=en
==============================================================================

== 1 of 1 ==
Date: Sat, Dec 4 2010 1:34 pm
From: "Peter Lucas (SAS RET)"


What do Urine and american Beer have in common?
They both taste the same going in and comming out!!

--
Peter Lucas
Brisbane
Australia

Q:Do you like Beef?
A:Well suck my C.O.C.K Its Dripping!

sticking it to ''Politcal Correctness'' since 2008

==============================================================================
TOPIC: instructor solution manual for Engineering Mechanics - Statics by
Boresi, Schmidt
http://groups.google.com/group/sci.electronics.repair/t/9168d8b2c77c7edd?hl=en
==============================================================================

== 1 of 1 ==
Date: Sat, Dec 4 2010 1:36 pm
From: peter kalvin


I have solutions manuals to all problems and exercises in these
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solutions manual to Artificial Intelligence A Modern Approach 2e by
Russell, Norvig
solutions manual to Auditing and Assurance Services- An Integrated
Approach 12E by Arens
solutions manual to Auditing and Assurance Services, 12th edition,
Alvin A Arens, Randal J Elder, Mark Beasley
solutions manual to Automatic Control Systems, 8E, by Kuo, Golnaraghi
solutions manual to Basic Electrical Engineering By Nagrath, D P
Kothari
solutions manual to Basic Engineering Circuit Analysis, 8th Edition by
J. David Irwin, R. Mark Nelms
solutions manual to Basic Heat and Mass Transfer by A. F. Mills
solutions manual to Basic Probability Theory by Robert B. Ash
solutions manual to Bioprocess Engineering Principles (Pauline M.
Doran)
solutions manual to Business Statistics - Decision Making 7th E by
David F. Groebner
solutions manual to C++ for Computer Science and Engineering by Vic
Broquard
solutions manual to C++ How to Program 3rd edition - Deitel
solutions manual to Calculus - Early Transcendentals, 6th E, by Anton,
Bivens, Davis
solutions manual to Calculus - Early Transcendentals, 7E, by Anton,
Bivens, Davis
solutions manual to Calculus - Late Transcendentals Single Variable,
8th Ed by Anton, Bivens, Davis
solutions manual to Calculus (9th Ed., Dale Varberg, Edwin Purcell &
Steve Rigdon)
solutions manual to Calculus 2nd edition-M. Spivak
solutions manual to Calculus A Complete Course 6th Edition by by R.A.
Adams
solutions manual to Calculus and its Applications (11th Ed., Larry J
Goldstein, Schneider, Lay & Asmar)
solutions manual to Calculus by Gilbert Strang
solutions manual to Calculus early transcendentals 8th Ed, by Anton
Bivens Davis
solutions manual to Calculus Early Transcendentals, 5th Edition, JAMES
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solutions manual to Calculus George Thomas 10th ed Vol 1
solutions manual to Calculus of Variations MA 4311 LECTURE NOTES
( Russak )
solutions manual to Calculus One & Several Variables 8e by S Salas
solutions manual to Calculus Vol 2 by Apostol
solutions manual to Calculus With Analytic Geometry 4th ( Henry
Edwards & David E. Penney)
solutions manual to Calculus with Applications 8 Edition by Lial,
Greenwell, Ritchey
solutions manual to Calculus, 4th edition stewart
solutions manual to Calculus, An Applied Approach, 7E, by Larson
solutions manual to Calculus, Single and Multivariable, 4E.,Vol 1& Vol
2 by Hughes-Hallett,McCallum
solutions manual to Calculus, Single Variable, 3E by Hughes-
Hallett,McCallum
solutions manual to Chemical and Engineering Thermodynamics 3Ed by
Stanley I. Sandler
solutions manual to Chemical Engineering Design (Coulson &
Richardson's Chemical Engineering - Volume 6) - (4th Ed., Sinnott)
solutions manual to Chemical Engineering Volume 1, 6th Edition, by
Richardson, Coulson,Backhurst, Harker
solutions manual to Chip Design for Submicron VLSI CMOS Layout and
Simulation, John P. Uyemura
solutions manual to Cisco Technical Solution Series IP Telephony
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solutions manual to Classical Dynamics of Particles and Systems, 5th
Ed, by Marion, Thornton
solutions manual to Classical Dynamics, A Contemporary Approach (Jorge
V. Jose)
solutions manual to Classical Electrodynamics by John David Jackson
solutions manual to Classical Mechanics (Douglas Gregory)
solutions manual to Classical Mechanics 2nd Ed by Goldstein
solutions manual to CMOS Analog Circuit Design, 2ed by Phillip E.
Allen, Douglas R. Holberg
solutions manual to CMOS- Circuit Design, Layout, and Simulation,
Revised 2nd Ed by R. Jacob Baker
solutions manual to Cmos Digital Integrated Circuits , Sung-Mo
Kang,Yusuf Leblebici
solutions manual to CMOS Mixed-Signal Circuit Design, 2nd Ed by R.
Jacob Baker
solutions manual to Communication Networks, 2e, Alberto Leon-Garcia,
Indra Widjaja
solutions manual to Communication Systems (4th Ed., Simon Haykin)
solutions manual to Communication Systems An Introduction to Signals
and Noise in Electrical Communication, 4E, A. Bruce Carlson
solutions manual to Communication Systems Engineering (2nd Ed., John
G. Proakis & Masoud Salehi)
solutions manual to Complex Variables with Applications, 3rd ED by
David A. Wunsch
solutions manual to Computational Techniques for Fluid Dynamics
Srinivas, K., Fletcher, C.A.J.
solutions manual to Computer Architecture - A Quantitative Approach,
4th Ed by Hennessy, Patterson
solutions manual to Computer Architecture Pipelined & Parallel
Processor Design by Michael J Flynn
solutions manual to Computer Networking A Top-Down Approach Featuring
the Internet, 3E Kurose,Ross
solutions manual to Computer Networking: A Top-Down Approach (4th Ed.,
James F. Kurose & Keith W. Ross)
solutions manual to Computer Networks A Systems Approach, 2nd Edition,
Larry Peterson, Bruce Davie
solutions manual to Computer Networks, 4th Ed., by Andrew S. Tanenbaum
solutions manual to Computer Organization 3rd Edition by Carl
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solutions manual to Computer Organization and Architecture: Designing
for Performance (7th Ed., William Stallings)
solutions manual to Computer Organization and Design The Hardware
Software Interface, 3rd edition by David A Patterson and John L
Hennessy
solutions manual to Computer system architecture 3rd Ed Morris Mano
solutions manual to Concepts and Applications of Finite Element
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solutions manual to Concepts of Modern Physics 6th ED by Arthur Beiser
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Park)
solutions manual to Continuum Electromechanics by James R. Melcher
solutions manual to Control Systems Engineering, 4E, by Norman Nise
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Gopal
solutions manual to Convex Analysis and Optimization Dimitri P.
Bertsekas
solutions manual to Corporate Finance The Core plus MyFinanceLab
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solutions manual to Corporate Finance, 7E, by Ross
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solutions manual to Cryptography and Network Security (4th Ed.,
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Stallings
solutions manual to Data Communications and Networking by Behroz
Forouzan
solutions manual to Data Structures with Java by John R. Hubbard,
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solutions manual to Database Management Systems, 3rd Ed., by
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solutions manual to Database System Concepts 5th ED by Silberschatz,
Korth, Sudarshan
solutions manual to Design Analysis in Rock Mechanics by William G.
Pariseau
solutions manual to Design and Analysis of Experiments, 6E, by
Montgomery
solutions manual to Design of Analog CMOS Integrated Circuits by
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solutions manual to Design of Machinery (3rd Ed., Norton)
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Brown
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Edition by muller kamins
solutions manual to Differential Equations and Linear Algebra ( 2nd
Ed., Jerry Farlow, Hall, McDill & West)
solutions manual to Differential Equations and Linear Algebra ( C.
Henry Edwards & David E. Penney)
solutions manual to Differential Equations and Linear Algebra 3e by
Stephen W Goode
solutions manual to Differential Equations with Boundary Value
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solutions manual to Digital Communications Fundamentals and
Applications 2e Bernard Sklar
solutions manual to Digital Communications, 4E, by Proakis
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D. Ciletti)
solutions manual to Digital Design: Principles and Practices Package
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solutions manual to Digital Fundamentals ( 9th Ed., Thomas L. Floyd)
solutions manual to Digital Image Processing, 2e, by Gonzalez, Woods
solutions manual to Digital Integrated Circuits, 2nd Ed., by Rabaey
solutions manual to Digital Logic Design by Mano
solutions manual to Digital Signal Processing - A Modern Introduction,
by Ashok Ambardar
solutions manual to Digital Signal Processing Principles, Algorithms
and Applications, 3rd Edition by John G. Proakis
solutions manual to Digital Signal Processing a computer based
approach (2nd Ed.) (Mitra)
solutions manual to Digital Signal Processing a computer based
approach (Mitra)
solutions manual to Digital Signal Processing by Proakis & Manolakis
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solutions manual to Digital Systems - Principles and Applications
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solutions manual to Discrete and Combinatorial Mathematics 5e by Ralph
P. Grimaldi
solutions manual to Discrete Mathematics ( 6th Ed., Richard
Johnsonbaugh )
solutions manual to Discrete Mathematics ( 6th Edition) by Richard
Johnsonbaugh
solutions manual to Discrete Random Signals and Statistical Signal
Processing Charles W. Therrien
solutions manual to Discrete Time Signal Processing, 2nd Edition,
Oppenheim
solutions manual to DSP First A Multimedia Approach-Mclellan, Schafer
& Yoder
solutions manual to Dynamic Modeling and Control of Engineering
Systems 2 E T. Kulakowski , F. Gardner, Shearer
solutions manual to Dynamics of Flight- Stability and Control, 3rd Ed
by Etkin, Reid
solutions manual to Dynamics of Mechanical Systems by C. T. F. Ross
solutions manual to Econometric Analysis, 5E, by Greene
solutions manual to Econometric Analysis, 6E, by Greene
solutions manual to Econometrics of Financial Markets, by Adamek,
Cambell, Lo, MacKinlay, Viceira
solutions manual to Econometrics: A Modern Introduction (Michael P.
Murray)
solutions manual to Electric Circuits (7th Ed., James W Nilsson &
Susan Riedel)
solutions manual to Electric Circuits (8th Ed., James W Nilsson &
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solutions manual to Electric Machinery 6th ed. A.E.
Fitzgerald,Kingsley,Umans
solutions manual to Electric Machinery and Power System Fundamentals
(Chapman)
solutions manual to Electric Machinery Fundamentals (4th Ed., Chapman)
solutions manual to Electric Machines Analysis and Design Applying
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solutions manual to Electric Machines By D. P. Kothari, I. J. Nagrath
solutions manual to Electrical Engineering Principles and Applications
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solutions manual to Electrical Engineering Principles and Applications
(4th Ed., Allan R. Hambley)
solutions manual to Electrical Machines, Drives and Power Systems (6th
Ed., Theodore Wildi)
solutions manual to Electromagnetic Fields and Energy by Haus, Melcher
solutions manual to Electromagnetics Problem Solver (Problem Solvers)
By The Staff of REA
solutions manual to Electromagnetism. Principles and Applications by
LORRAIN, PAUL ; CORSON, DAVID
solutions manual to Electromechanical Dynamics Part 1, 2, 3 by Herbert
H. Woodson, James R. Melcher
solutions manual to Electronic Circuit Analysis, 2nd Ed., by Donald
Neamen
solutions manual to Electronic Devices 6th ed and electronic devices
Electron Flow Version 4th ed, Floyd
solutions manual to Electronic Devices and Circuit Theory 8th Ed by
Robert Boylestad
solutions manual to Electronic Physics Strabman
solutions manual to Electronics, 2nd Ed., by Allan R. Hambley
solutions manual to Elementary Differential Equations ( Werner E.
Kohler, Johnson)
solutions manual to Elementary Differential Equations and Boundary
Value Problems (8th Ed., Boyce & Diprima)
solutions manual to Elementary Linear Algebra 5th edition by Stanley
I. Grossman
solutions manual to Elementary Linear Algebra by Matthews
solutions manual to Elementary Linear Algebra with Applications (9th
Ed., Howard Anton & Chris Rorres)
solutions manual to Elementary mechanics & thermodynamics jhon
w.Nobury
solutions manual to ELEMENTARY NUMBER THEORY AND ITS APPLICATIONS,
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Ed., Felder & Rousseau)
solutions manual to Elementary Statistics Using The Graphing
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solutions manual to Elementary Statistics Using the Graphing
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solutions manual to Elements of Information Theory - M. Cover, Joy A.
Thomas
solutions manual to Elements of Chemical Reaction Engineering by
Fogler hubbard, hamman , johnson , 3rd edition
solutions manual to Elements of Deductive Inference by Bessie, Glennan
solutions manual to Elements of Electromagnetics , 2 ed by Matthew N.
O. Sadiku
solutions manual to Elements of Electromagnetics , 3ed by Matthew N.
O. Sadiku
solutions manual to Embedded Microcomputer Systems Real Time
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solutions manual to Engineering and Chemical Thermodynamics (Koretsky)
solutions manual to ENGINEERING BIOMECHANICS (STATICS) by Angela
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solutions manual to Engineering Circuit Analysis 6Ed, Luay Shaban
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Jr. and John A. Buck
solutions manual to Engineering Fluid Mechanics - 8th Ed by Crowe,
Elger & Roberson
solutions manual to Engineering Fluid Mechanics 7th Ed by Crowe and
Donald
solutions manual to Engineering Materials Science, by Milton Ohring
solutions manual to Engineering Mathematics (4th Ed., John Bird)
solutions manual to Engineering Mechanics - Dynamics by Boresi,
Schmidt
solutions manual to Engineering Mechanics - Dynamics, 5th Ed (J. L.
Meriam, L. G. Kraige)
solutions manual to Engineering Mechanics - Dynamics, 6th Ed (J. L.
Meriam, L. G. Kraige)
solutions manual to Engineering Mechanics - Statics (10th Edition) by
Russell C. Hibbeler
solutions manual to Engineering Mechanics - Statics (11th Edition) by
Russell C. Hibbeler
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Meriam, L. G. Kraige)
solutions manual to Engineering Mechanics - Statics, 6th Ed (J. L.
Meriam, L. G. Kraige)
solutions manual to Engineering Mechanics : Dynamics (11th Ed.,
Hibbeler)
solutions manual to Engineering Mechanics Dynamic (10th Edition)
hibbeler
solutions manual to Engineering Mechanics Dynamics (12th Ed.,
Hibbeler)
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5th Edition
solutions manual to Engineering Mechanics Dynamics, by R. C. Hibbeler,
3rd
solutions manual to Engineering Mechanics Statics (12th Ed., Hibbeler)
solutions manual to Engineering Mechanics Statics, Bedford & Fowler,
5th Edition
solutions manual to Engineering Statistics (4th Ed., Douglas
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solutions manual to Essentials of Soil Mechanics and Foundations:
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solutions manual to Feedback Control of Dynamic Systems (4th Ed.,
Franklin, Powell & Emami-Naeini)
solutions manual to Feedback Control of Dynamic Systems (5th Ed.,
Franklin, Powell & Emami-Naeini)
solutions manual to Field and Wave Electromagnetics 2nd Ed by David K.
Cheng
solutions manual to Financial Accounting 6th Ed by Harrison
solutions manual to Financial Management- Theory and Practice 12 th ED
by Brigham, Ehrhardt
solutions manual to Finite Element Techniques in Structural Mechanics
Ross
solutions manual to First Course in Probability (7th Ed., Sheldon
Ross)
solutions manual to Fluid Mechanics (5th Ed., White)
solutions manual to Fluid Mechanics and Thermodynamics of
Turbomachinery (5th Ed., S.L. Dixon)
solutions manual to Fluid Mechanics by CENGEL
solutions manual to Fluid Mechanics Egon Krause
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10th Edition, by Finnemore
solutions manual to Foundations of Colloid Science 2e , Hunter
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Reitz, Frederick J. Milford
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solutions manual to Fundamentals of Aerodynamics ( 3 Ed., Anderson)
solutions manual to Fundamentals of Aerodynamics (2 Ed., Anderson)
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Fawwaz T. Ulaby)
solutions manual to Fundamentals of Chemical Reaction Engineering by
Davis
solutions manual to Fundamentals of Complex Analysis ( 3rd Ed., E.
Saff & Arthur Snider )
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Ross
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Ross
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(Brealey, Myers, Marcus)
solutions manual to Fundamentals of Differential Equations 7E Kent
Nagle, B. Saff, Snider
solutions manual to Fundamentals of Digital Logic with VHDL Design
(1st Ed., Stephen Brown Vranesic)
solutions manual to Fundamentals of Electric Circuits (2nd.ed.) by
C.K.Alexander M.N.O.Sadiku
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Alexander & Matthew Sadiku)
solutions manual to Fundamentals of Electromagnetics with Engineering
Applications (Stuart Wentworth)
solutions manual to Fundamentals of Electronic Circuit Design , Comer
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DAVID CHENG
solutions manual to Fundamentals of Engineering Thermodynamics, 6th Ed
(Michael J. Moran, Howard N. Shapiro)
solutions manual to Fundamentals of Engineering Thermodynamics, 7th Ed
(Michael J. Moran, Howard N. Shapiro)
solutions manual to Fundamentals of Financial Management 12th edition
James C. Van Horne, Wachowicz
solutions manual to Fundamentals of Fluid Mechanics, 4E (Bruce R.
Munson, Donald F. Young, Theodore H.)
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Edition F.P. Incropera D.P. DeWitt
solutions manual to Fundamentals of Heat and Mass Transfer (4th Ed.,
Incropera, DeWitt)
solutions manual to Fundamentals of Heat and Mass Transfer (6th Ed.,
Incropera, DeWitt)
solutions manual to Fundamentals of Logic Design, 5th Ed., by Charles
Roth
solutions manual to Fundamentals of Machine Component Design (3rd Ed.,
Juvinall)
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Philip D. Rufe
solutions manual to Fundamentals of Materials Science and Engineering-
An Integrated Approach, 3rd Ed by Callister
solutions manual to Fundamentals of Modern Manufacturing: Materials,
Processes, and Systems (2nd Ed., Mikell P. Groover)
solutions manual to Fundamentals of Organic Chemistry, 5E, by T. W.
Graham Solomons
solutions manual to Fundamentals of Physics (7th Ed., David Halliday,
Robert Resnick & Jearl Walker)
solutions manual to Fundamentals of Physics, 8th Edition Halliday,
Resnick, Walker
solutions manual to Fundamentals of Probability, with Stochastic
Processes (3rd Ed., Saeed Ghahramani)
solutions manual to Fundamentals of Quantum Mechanics (C.L. Tang)
solutions manual to Fundamentals of Semiconductor Devices, 1st Edition
by Anderson
solutions manual to Fundamentals of Signals and Systems Using the Web
and Matlab (3rd Ed., Kamen & Bonnie S Heck)
solutions manual to Fundamentals of Solid-State Electronics by Chih-
Tang Sah
solutions manual to Fundamentals of Thermal-Fluid Sciences, 2nd Ed. by
Cengel
solutions manual to Fundamentals of Thermodynamics 5th Ed by Sonntag,
Borgnakke and Van Wylen
solutions manual to Fundamentals of Thermodynamics 6th Ed by Sonntag,
Borgnakke & Van Wylen
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Viswanath
solutions manual to Gas Dynamics (3rd Ed., John & Keith)
solutions manual to General Chemistry 9 Edition by Ebbings, Gammon
solutions manual to General Chemistry, 8th Edition by Ralph H.
Petrucci; William S. Harwood; Geoffrey Herring
solutions manual to Geometry and Discrete Mathematics Addison Wesley
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Dieter E. Pawlik
solutions manual to Guide to Energy Management, Fifth Edition, Klaus-
Dieter E. Pawlik
solutions manual to HARCOURT MATHEMATICS 12 Advanced Functions and
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Mathematics
solutions manual to Heat and Mass Transfer: A Practical Approach (3rd.
Ed., Cengel)
solutions manual to Heat Transfer A Practical Approach ,Yunus A.
Cengel 2d ed
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Katz)
solutions manual to Hydraulics in Civil and Environmental Engineering
4 E by Chadwick , Morfett
solutions manual to Industrial Organization Theory & Applications by
Shy
solutions manual to Intermediate Accounting Kieso 12th ed
solutions manual to Introduction to Algorithms, 2nd Ed by Cormen,
Leiserson
solutions manual to Introduction To Analysis (3rdEd) -by William Wade
solutions manual to Introduction to Chemical Engineering
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solutions manual to Introduction to Commutative Algebra by M. F.
Atiyah
solutions manual to Introduction to Digital Signal Processing (in
Serbian) by Lj. Milic and Z. Dobrosavljevic
solutions manual to Introduction to Econometrics (2nd ed., James H.
Stock & Mark W. Watson)
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Dorf, Svaboda
solutions manual to Introduction to Electric Circuits, 6E, Dorf
solutions manual to Introduction to Electrodynamics (3rd Ed., David J.
Griffiths)
solutions manual to Introduction to Elementary Particles 2nd Ed by
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solutions manual to Introduction to Environmental Engineering and
Science (3rd Ed., Gilbert M. Masters & Wendell P. Ela)
solutions manual to Introduction to Environmental Engineering and
Science, Edition 2, Masters
solutions manual to Introduction to Ergonomics 2E by Robert Bridger
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Alan McDonald & Philip)
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Alan T. McDonald, Robert W Fox
solutions manual to Introduction to Graph Theory 2E - West
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Ahmet Selamet, Shu-Hsin Kao
solutions manual to Introduction to Linear Algebra, 3rd Ed., by
Gilbert Strang
solutions manual to Introduction to Materials Science for Engineers
(6th Ed., Shackelford)
solutions manual to Introduction to Mathematical Statistics (6th Ed.,
Hogg, Craig & McKean)
solutions manual to Introduction to Operations Research - 7th ed by
Frederick Hillier, Gerald Lieberman
solutions manual to Introduction to Probability 2nd Ed by Bertsekas
and Tsitsiklis
solutions manual to Introduction to Probability by Dimitri P.
Bertsekas and John N. Tsitsiklis
solutions manual to Introduction to Probability by Grinstead, Snell
solutions manual to Introduction to Quantum Mechanics (2nd Ed., David
J. Griffiths)
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(1995) by David J. Griffiths
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solutions manual to Introduction to Scientific Computation and
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solutions manual to Introduction to Statistical Physics by Kerson
Huang
solutions manual to Introduction to Statistical Quality Control (5th
Ed., Douglas C. Montgomery)
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Law
solutions manual to Introduction to Thermal and Fluids Engineering by
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solutions manual to Introduction to Thermal Systems Engineering Moran
Shapiro Munson
solutions manual to Introduction to VLSI Circuits and Systems, by John
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solutions manual to Introduction to Wireless Systems by P.M Shankar
solutions manual to Introductory Econometrics A Modern Approach, 3Ed
by Jeffrey Wooldridge
solutions manual to Introductory Quantum Optics (Christopher Gerry &
Peter Knight)
solutions manual to Introdution to Solid State Physics, 8th Edition by
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solutions manual to Journey into Mathematics An Introduction to
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solutions manual to Kinematics, Dynamics, and Design of Machinery, 2nd
Ed., Waldron & Kinzel
solutions manual to Kinetics of Catalytic Reactions by M. Albert
Vannice
solutions manual to Laser Fundamentals (2nd Ed., William T. Silfvast)
solutions manual to Lectures on Corporate Finance 2006, 2 Ed by
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solutions manual to Linear Algebra - 2 Ed - Poole
solutions manual to Linear Algebra and Its Applications 3rd ed by
David C. Lay
solutions manual to Linear Algebra Done Right, 2nd Ed by Sheldon Axler
solutions manual to Linear Algebra with Applications (6th Ed., S.
Leon)
solutions manual to Linear Algebra With Applications, 2nd Edition by
W. Keith Nicholson
solutions manual to Linear Algebra, 4th Ed, by Stephen H. Friedberg ,
Arnold J. Insel , Lawrence E. Spence
solutions manual to Linear Algebra, by J. Hefferon
solutions manual to Linear Circuit Analysis Time Domain, Phasor and
Laplace.., 2nd Ed, Lin
solutions manual to Linear Systems And Signals, 1stE, B P Lathi
solutions manual to Logic and Computer Design Fundamentals, 2E, by
Morris Mano and Charles Kime
solutions manual to Logic and Computer Design Fundamentals, 3d edition
by Morris Mano and Charles Kime
solutions manual to Logic and Computer Design Fundamentals, 4/E, by
Morris Mano and Charles Kime
solutions manual to Machine Design : An Integrated Approach (3rd Ed.,
Norton)
solutions manual to Managing Business Process Flows: Principles of
Operations Management(2nd Ed., Anupind, Chopra, Deshmukh, et al)
solutions manual to Managing Engineering and Technology (4th, Morse &
Babcock)
solutions manual to Manufacturing Processes for Engineering Materials
(5th Ed. Kalpakjian & Smith)
solutions manual to Materials and Processes in Manufacturing (9th Ed.,
E. Paul DeGarmo, J. T. Black,Kohser)
solutions manual to Materials Science and Engineering- An Introduction
( 7th Ed., William D. Callister, Jr.)
solutions manual to Materials Science and Engineering- An Introduction
(6th Ed., William D. Callister, Jr.)
solutions manual to Mathematical Analysis, Second Edition by Tom M.
Apostol
solutions manual to Mathematical Methods for Physicists 5 Ed, Arfken
solutions manual to Mathematical Methods for Physics and Engineering,
(3rd Ed., Riley,Hobson)
solutions manual to Mathematical Methods in the Physical Sciences; 3
edition by Mary L. Boas
solutions manual to Mathematical Models in Biology An Introduction
(Elizabeth S. Allman & John A. Rhodes)
solutions manual to Mathematical Techniques 4th ED by D W Jordan & P
Smith
solutions manual to Mathematics for Economists, by Carl P. Simon ,
Lawrence E. Blume
solutions manual to Mathematics for Physicists by Susan Lea
solutions manual to Matrix Analysis and Applied Linear Algebra by
Meyer
solutions manual to Mechanical Engineering Design 8th Ed by Shigley &
Budynas
solutions manual to Mechanical Engineering Design, 7th Ed. by Mischke,
Shigley
solutions manual to Mechanical Measurements (6th Ed., Beckwith,
Marangoni & Lienhard)
solutions manual to Mechanical Vibrations (3rd Ed., Rao)
solutions manual to Mechanics of Aircraft Structures, 2nd Ed by Sun
solutions manual to Mechanics of Fluids (8th Ed., Massey)
solutions manual to Mechanics of Fluids 3rd ED Vol 1 by Merle C.
Potter
solutions manual to Mechanics of Materials 5 edition by James M. Gere
solutions manual to Mechanics of Materials (6th Ed., Riley, Sturges &
Morris)
solutions manual to Mechanics Of Materials Beer Johnston 3rd
solutions manual to Mechanics of Materials, 6E, by Russell C. Hibbeler
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Gere & Barry Goodno
solutions manual to Mechanics of Materials, 7E, by Russell C. Hibbeler
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Gere & Barry Goodno
solutions manual to mechanics of solids by C. T. F. Ross
solutions manual to Mechanics of Solids, ross
solutions manual to Mechanism Design Analysis and Synthesis (4th
Edition) by Erdman, Sandor, Kota
solutions manual to Microeconomic Analysis, 3rd Ed., by H. Varian
solutions manual to Microeconomic Theory by Segal Tadelis Hara Chiaka
Hara Steve Tadelis
solutions manual to Microeconomic Theory, by Mas-Colell, Whinston,
Green
solutions manual to Microelectronic Circuit Analysis and Design, 3rd
Edition, by D. Neamen
solutions manual to Microelectronic Circuit Design (3rd Ed., Richard
Jaeger & Travis Blalock)
solutions manual to Microelectronic Circuits By Adel Sedra 5th
Edition
solutions manual to Microelectronic Circuits, 4th Ed. by Sedra and
Smith
solutions manual to Microelectronic Circuits, 5th Ed. by Sedra and
Smith
solutions manual to Microelectronics Digital and Analog Circuits and
Systems by Millman
solutions manual to Microelectronics I & II by Dr.Chang
solutions manual to Microelectronics,Solution MANUAL,5thEd,MAZ
solutions manual to Microprocessors and Interfacing, Revised 2nd
Edition by Douglas V Hall
solutions manual to Microwave and Rf Design of Wireless Systems, 1st
Edition, by Pozar
solutions manual to Microwave Engineering, 2nd Ed., by David M. Pozar
solutions manual to Microwave Engineering, 3rd Ed., by David M. Pozar
solutions manual to Microwave Transistor Amplifiers Analysis and
Design, 2nd Ed., by Guillermo Gonzalez
solutions manual to Mobile Communications 2nd ed by Jochen Schiller
solutions manual to Modern Control Engineering 3rd Ed. - K. OGATA
solutions manual to Modern Control Engineering 4th Ed. - K. OGATA
solutions manual to Modern Control Systems 11E by Richard C Dorf and
Robert H. Bishop
solutions manual to Modern Control Systems 9 E by Richard C Dorf and
Robert H. Bishop
solutions manual to Modern Digital and Analog Communication Systems,
3rd Ed., by Lathi
solutions manual to Modern Digital Electronics,3E by R P JAIN
solutions manual to Modern Digital Signal Processing-Roberto Cristi
solutions manual to MODERN OPERATING SYSTEMS 2nd ed A.S.TANENBAUM
solutions manual to Modern Organic Synthesis An Introduction by George
Zweifel, Michael Nantz
solutions manual to Modern Physics for Scientists and Engineers 3rd E
by Thornton and Rex
solutions manual to Modern Quantum Mechanics (Revised Edition) by J.
J. Sakurai
solutions manual to Multivariable Calculus, Applications and Theory by
Kenneth Kuttler
solutions manual to Nanoengineering of Structural, Functional and
Smart Materials, Mark J. Schulz, Ajit D. Kelkar
solutions manual to Network Flows: Theory, Algorithms, and
Applications by Ravindra K. Ahuja , Thomas L. Magnanti , James B.
Orlin
solutions manual to Nonlinear Programming ,2ndEdition , Dimitri
P.Bertsekas
solutions manual to Numerical Methods for Engineers (3rd Ed. Steven C.
Chapra)
solutions manual to Numerical Methods for Engineers (5th Ed. Steven C.
Chapra)
solutions manual to Numerical Methods Using MATLAB (3rd Edition)by
John H. Mathews & Fink
solutions manual to Numerical Solution of Partial Differential
Equations- An Introduction (2nd Ed., K. W. Morton &D)
solutions manual to Operating System Concepts, 6E, Silberschatz,
Galvin, Gagne
solutions manual to Operating System Concepts, 7E, Silberschatz,
Galvin, Gagne
solutions manual to Operating systems Internals and Design principles
4th Edition Stallings
solutions manual to Operating systems Internals and Design principles
5th Edition Stallings
solutions manual to Operations Management 5th Ed by Nigel Slack,
Chambers, Johnston
solutions manual to Optics 4th Edition by Hecht E., Coffey M., Dolan P
solutions manual to Optimal Control Theory An Introduction By Donald
E. Kirk
solutions manual to Optimal State Estimation Dan Simon
solutions manual to Options, Futures and Other Derivatives, 4E, by
John Hull
solutions manual to Options, Futures and Other Derivatives, 5E, by
John Hull
solutions manual to Organic Chemistry - Clayden et.al.
solutions manual to Organic Chemistry 2nd Edition by Hornback
solutions manual to Organic Chemistry 7ed, McMurry
solutions manual to Organic Chemistry, 4E., by Carey, Atkins
solutions manual to Organic Chemistry, 5E., by Carey, Atkins
solutions manual to Parallel & Distributed Computation Numerical
Methods by Bertsekas & Tsitsiklis
solutions manual to Parallel Programming: Techniques and Applications
Using Networked Workstations and Parallel Computers (2nd Ed., Barry
Wilkinson & Michael Allen)
solutions manual to Physical Chemistry (7E, Peter Atkins & Julio de
Paula)
solutions manual to Physics - Concept and Connections - Book Two by
Brian Heimbecker, Igor Nowikow, et al
solutions manual to Physics - Concept and Connections -by Brian
Heimbecker, Igor Nowikow, et al
solutions manual to Physics , Fifth Edition, Volume One (Halliday,
Resnick, Krane)
solutions manual to Physics for Scientist and Engineers, 5E, by
Tipler, Mosca
solutions manual to Physics For Scientists & Engineers 5th Ed
(vol.I,vol.II) by Serway & Beichner
solutions manual to Physics For Scientists & Engineers Vol.1& 2 3rd
Ed. by Serway & Jewett
solutions manual to Physics For Scientists & Engineers Vol.1& 2 4th
Ed. by Serway & Jewett
solutions manual to Physics For Scientists & Engineers Vol.I 6th Ed.
by Serway & Jewett
solutions manual to Physics For Scientists & Engineers Vol.II 6th Ed.
by Serway & Jewett
solutions manual to Physics for Scientists and Engineers with Modern
Physics (3rd Edition) by Douglas C. Giancoli
solutions manual to Physics for Scientists and Engineers, 1st E by
Knight
solutions manual to Physics for Scientists and Engineers, 2/E by
Knight
solutions manual to Physics, 2nd Ed James S. Walker
solutions manual to Physics, 5th Edition, Vol 1 by Halliday, Resnick,
Krane
solutions manual to Physics, 5th Edition, Vol 2 by Halliday, Resnick,
Krane
solutions manual to Physics: Principles with Applications with
Mastering Physics, 6/E, Douglas C. Giancoli
solutions manual to Power Electronics Converters, Applications, and
Design 3rd ed By Ned Mohan, Tore M. Undeland, William P. Robbins
solutions manual to Power System Analysis and Design, 3 E., by Glover,
Sarma
solutions manual to Power System Analysis and Design,4E., by Glover,
Sarma
solutions manual to Power System Analysis,John J. Grainger William D.
Stevenson
solutions manual to Power Systems Analysis - 2nd Edition by Hadi
Saadat
solutions manual to POWER SYSTEMS ANALYSIS by HADI SAADAT
solutions manual to Principles and Applications of Electrical
EngineeringG. Rizzoni
solutions manual to Principles of Communications- Systems, Modulation,
and Noise (5th Ed.,Ziemer & W.H. Tranter)
solutions manual to Principles of Digital Communication and coding by
Andrew J. Viterbi and Jim K. Omura
solutions manual to Principles of Dynamics 2nd ED, Donald T. Greenwood
solutions manual to Principles of Electronic Materials and Devices 2ed
by Safa O. Kasap
solutions manual to Principles of Geotechnical Engineering 6th edition
by Braja M. Das
solutions manual to Principles of Neurocomputing for Science and
Engineering, Fredric M. Ham,Ivica Kostanic
solutions manual to Probability & Statistics for Engineers &
Scientists (8th Ed., Walpole,Myers, Ye)
solutions manual to Probability and Random Processes for Electrical
Engineering by Alberto Leon-Garcia
solutions manual to Probability and Statistical Inference (7th Ed.,
Hogg & Tanis)
solutions manual to Probability and Statistics for Engineering and the
Sciences, 6th Ed., by Jay L. Devore
solutions manual to Probability and Statistics for Engineers 7 Ed
Johnson Miller Freund
solutions manual to Probability and Statistics in Engineering (4th
Ed., Hines, Montgomery, Goldsman & Borror)
solutions manual to Probability and Stochastic Processes 2E, by Roy D.
Yates , David J. Goodman
solutions manual to Probability Concepts in Engineering Emphasis on
Applications to Civil and Environmental Engineering 2nd ED by Alfredo
Ang and Wilson Tang
solutions manual to Probability For Risk Management, Hassett, Stewart
solutions manual to Probability Random Variables, and Stochastic
Processes, 4th Ed., by Papoulis, Pillai
solutions manual to Probability, Random Variables and Stochastic
Processes, 3rd Edition Athanasios Papoulis
solutions manual to Probability, Statistics, and Random Processes for
Engineers, Richard H. Williams
solutions manual to Problems and Solutions on Electromagnetism by Lim
Yung-Kuo
solutions manual to Problems in general physics by I. E Irodov
solutions manual to Problems in General Physics vol.I & vol.II Irodov
solutions manual to Psychology and Life by Gerrig & Zimbardo ,16th
edition
solutions manual to Quantitative Methods for Management by PINNEY,
McWILLIAMS, ORMSBY, ATCHISON
solutions manual to Quantum Field Theory Mark Srednicki
solutions manual to Quantum Mechanics - B. Brinne
solutions manual to Quantum Mechanics: An Accessible Introduction
(Robert Scherrer)
solutions manual to Quantum Physics, 3rd Edition, by Stephen
Gasiorowicz
solutions manual to Quantum theory of light 3 Ed by Rodney Loudon
solutions manual to Real Analysis 1st Edition by H. L. Royden
solutions manual to Recursive Methods in Economic Dynamics, (2002) by
Irigoyen, Rossi- Hansberg, Wright
solutions manual to Reinforced Concrete: Mechanics and Design (5th
Ed., James G. MacGregor & James K. Wight)
solutions manual to RF Circuit Design: Theory & Applications, by
Bretchko, Ludwig
solutions manual to Satellite Communications 2nd Ed By Timothy Pratt,
Charles W. Bostian
solutions manual to Scientific Computing with Case Studies by Dianne
P. O'Leary
solutions manual to Semiconductor Device Fundamentals by Pierret
solutions manual to SEMICONDUCTOR DEVICES Physics and Technology 2nd
Ed by SZE
solutions manual to Semiconductor Physics and Applications by
Balkanski, Wallis
solutions manual to Semiconductor Physics and Devices (3rd Ed., Donald
A. Neamen)
solutions manual to Shigley's Mechanical Engineering Design (8th Ed.,
Budynas)
solutions manual to Signal Processing and Linear Systems by Lathi
solutions manual to Signal Processing by Mclellan, Schafer & Yoder
solutions manual to Signals and Systems 2e by Haykin & B Van Veen
solutions manual to Signals and Systems Analysis of Signals Through
Linear Systems by M.J. Roberts, M.J. Roberts
solutions manual to Signals and Systems, 2nd Edition, Oppenheim,
Willsky, Hamid, Nawab
solutions manual to Signals and Systems: Analysis Using Transform
Methods and MATLAB, 1st Ed., by M. J. Roberts
solutions manual to Signals, Systems & Transforms 4 ED by Phillips,
Parr & Riskin
solutions manual to Skill - Assessment Exercises to Accompany Control
Systems Engineering 3rd edt. by Norman S. Nise
solutions manual to Soil Mechanics 7th ed by R. F. Craig
solutions manual to Soil Mechanics Concepts and Applications, 2nd Ed.,
by Powrie
solutions manual to Solid State Electronics 5th ed by Ben Streetman,
Sanjay Banerjee
solutions manual to Solid State Physics by Ashcroft & Mermin
solutions manual to Solving ODEs with MATLAB (L. F. Shampine, I.
Gladwell & S. Thompson)
solutions manual to Special Relativity (P.M. Schwarz & J.H. Schwarz)
solutions manual to Statics and Mechanics of Materials, 2/E., By
Russell C. Hibbeler
solutions manual to Statistical Digital Signal Processing and
Modeling ,Monson H. Hayes
solutions manual to Statistical Inference 2e by Casella G., Berger
R.L. and Santana
solutions manual to Statistical Inference, Second Edition Casella-
Berger
solutions manual to Statistics for Business and Economics 8 ED by
Anderson, Sweeney
solutions manual to Statistics for Business and Economics 9 ED by
Anderson, Sweeney
solutions manual to Steel Design, 4th Edition Segui
solutions manual to Stochastic Processes An Introduction by Peter W
Jones and Peter Smith
solutions manual to Strength of Materials 4th Ed. by Ferdinand L.
Singer & Andrew Pytel
solutions manual to Structural Analysis (5th Edition) by R.C.
Hibbeler
solutions manual to Structural Analysis (7th Edition) by R.C.
Hibbeler
solutions manual to Structural analysis 3rd Edition Aslam Kassimali
solutions manual to Structural and Stress Analysis (2nd Ed., Megson)
solutions manual to System Dynamics 3rd Ed. by Katsuhiko Ogata
solutions manual to System Dynamics and Response, S. Graham Kelly
solutions manual to Techniques of Problem Solving by Luis Fernandez
solutions manual to The Calculus 7ed by Louis Leithold
solutions manual to The Chemistry Maths Book 2nd ED by Erich Steiner
solutions manual to The Econometrics of Financial Markets, by Adamek,
Cambell, Lo, MacKinlay, Viceira
solutions manual to The Economics of Financial Markets by Roy E.
Bailey
solutions manual to The Environment by Greg Lewis
solutions manual to The Science and Engineering of Materials, 4E, by
Donald R.Askeland, Pradeep P. Phule
solutions manual to The Sciences- An Integrated Approach, 5th Ed by
Trefil, Hazen
solutions manual to The Structure and Interpretation of Signals and
Systems (Edward A. Lee & Pravin Varaiya)
solutions manual to The Theory of Interest 3rd ED by Stephen Kellison
solutions manual to Theory and Design for Mechanical Measurements (4th
Ed, Figliola & Beasley)
solutions manual to Theory of Asset Pricing (George Pennacchi)
solutions manual to Thermal Physics, 2nd Edition, by Charles Kittel
solutions manual to Thermodynamics - An Engineering Approach, 2E Yunus
A. Çengel
solutions manual to Thermodynamics An Engineering Approach (5th Ed.,
Cengel)
solutions manual to Thermodynamics: An Engineering Approach (6th Ed.,
Cengel)
solutions manual to Thomas' Calculus Early Transcendentals 10th ed
Vol 1 by Thomas, Finney, Weir, Giordano
solutions manual to Thomas' Calculus Early Transcendentals 10th ed
Vol 2 by Thomas, Finney, Weir, Giordano
solutions manual to Thomas' Calculus, Early Transcendentals, Media
Upgrade, 11E by Thomas, Weir, Hass, Giordano
solutions manual to Topology Problem Solver (Problem Solvers)
solutions manual to Transport Phenomena (2nd Ed., Bird & Stewart)
solutions manual to Two-Dimensional Incompressible Navier-Stokes
Equations- Maciej Matyka
solutions manual to Understandable Statistics 7th Ed by Charles Henry
Brase , Corrinne Pellillo Brase
solutions manual to Unit Operations of Chemical Engineering (6th Ed.,
McCabe & Smith)
solutions manual to Unit Operations of Chemical Engineering (7th Ed.,
McCabe & Smith)
solutions manual to University Physics with Modern Physics 11th
Edition Sears , Zemansky
solutions manual to University Physics with Modern Physics 12th
Edition Sears , Zemansky
solutions manual to University Physics with Modern Physics with
Mastering Physics, 12E, Hugh D. Young, Roger A. Freedman
solutions manual to Unsaturated Soil Mechanics by Lu and Likos ,Wiley
2004
solutions manual to Vector Calculus, Linear Algebra, and Differential
Forms 2nd edition by Hubbard and Burke
solutions manual to Vector Mechanics for Engineers Dynamics (6th Ed.,
Ferdinand P. Beer)
solutions manual to Vector Mechanics for Engineers Dynamics (7th Ed.,
Ferdinand P. Beer)
solutions manual to Vector Mechanics for Engineers Dynamics (8th Ed.,
Ferdinand P. Beer)
solutions manual to Vector Mechanics for Engineers Statics (7th Ed.,
Ferdinand P. Beer)
solutions manual to Vector Mechanics for Engineers Statics (8th Ed.,
Ferdinand P. Beer)
solutions manual to Vector Mechanics for Engineers Statics & Dynamics
(6th Ed., Ferdinand P. Beer)
solutions manual to Wireless Communications (Andrea Goldsmith)
solutions manual to Wireless Communications Principles and Practice,
2nd Ed, by Rappaport


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