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

sci.electronics.repair
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Today's topics:

==============================================================================
TOPIC: PC Power Supply Recommendations?
http://groups.google.com/group/sci.electronics.repair/t/5d9c672c7593977e?hl=en
==============================================================================

== 1 of 3 ==
Date: Fri, May 20 2011 11:31 pm
From: Jeff Liebermann

On Fri, 20 May 2011 11:34:42 -0700 (PDT), KenO <kenitholson@yahoo.com>
wrote:

>Am looking for a reliable cost effective ATX Power Supply.

Reliable, powerful, cheap. Pick any two.

>While researching found "Who's Who In Power Supplies, 2011: Brands Vs.
>Manufacturers"
>http://www.tomshardware.com/reviews/power-supply-oem-manufacturer,2913.html

Interesting article, but insufficient information to even offer a
recommended power supply.

>"Lack of protection circuits, low efficiency, and bad build quality
>were major points of criticism." Like most PC hardware seems
>important to do your homework.

If you look at the various ATX schematics found by Google Images, you
won't find one that lacks input protection. That's because in order
to obtain the multitude of certifications and logos plastered all over
the serial number sticker, input protection is required.

What I look for is power factor correction. That will drop the
efficiency somewhat, but is well worth it (and will soon be
mandatory).

>Hope the protection circuits work. Do not want an explosive or fire
>problem so am especially interested in power supplies that have
>survived catastrophic events.

The manufacturers warranty only extends to the value of the power
supply. The metal case does quite well at containing any explosions.
However, the clear plastic fans, with plastic grill, will not survive
and probably fragment if the guts explode.

A few years ago, I decided it would be interesting to see what happens
if I load an ATX power supply with it's maximum ratings. The power
specs are a bit complexicated, so I settled on a somewhat less than
maximum load. For example, the 5V and 3.3V loads are combined for a
maximum of 115W. I forgot exactly what I used:
<www.formfactors.org/developer/specs/ATX12V_PSDG_2_2_public_br2.pdf>
250 watts of heat is a lot of heat.

I dug out my collection of junk ATX supplies, and fired them up. I
think two of them simply shut down and gave up. One blew up, but it
may have been blown before the test. Most survived for about 5
minutes, and then shut down from overheating. The 5V line dropped to
as low as 4.2V on about half the supplies. The 12V line was even
worse, dropping to below 11VDC. None of the junk power supplies came
even close to meeting their own specifications.

So, who makes high quality ATX power supplies? Well, it's none of the
commodity or OEM vendors. It's possible that the industrial and
server vendors have better power supplies, but I didn't test any of
those. I also can't afford them.

So, how do you pick the lesser evil power supply? Well, one way is to
check the density of the components. If the PCB is sparse, with large
empty gaps between components, they've cut some corners. Better power
components tend to be big and heft. If the power supply is crammed
full of parts, you have a good chance of having found something
usable.

Also, I rather like Dell power supplies. I've had my share of Dell
failures, but reliability is not the attraction. In their larger
boxes, Dell uses a single 120mm cooling fan, with the speed controlled
by the temperature. That makes for a very quiet machine.

--
# Jeff Liebermann 150 Felker St #D Santa Cruz CA 95060
# 831-336-2558
# http://802.11junk.com jeffl@cruzio.com
# http://www.LearnByDestroying.com AE6KS

== 2 of 3 ==
Date: Sat, May 21 2011 9:26 am
From: Sofa Slug

On 5/20/2011 11:34 AM, KenO wrote:
> Am looking for a reliable cost effective ATX Power Supply.
>
> While researching found "Who's Who In Power Supplies, 2011: Brands
> Vs. Manufacturers"
> http://www.tomshardware.com/reviews/power-supply-oem-manufacturer,2913.html
>
>
>
>
>
> "Lack of protection circuits, low efficiency, and bad build quality
> were major points of criticism." Like most PC hardware seems
> important to do your homework.
>
> Hope the protection circuits work. Do not want an explosive or fire
> problem so am especially interested in power supplies that have
> survived catastrophic events.
>
> Thanks
>
> Ken
>

FWIW, I recommend Corsair. I purchased their 650 model about 6 months
ago to replaced a failed Antec. The reason I chose a Corsair is that
they appear to hold up fairly well in review testing. The 650 also uses
105 degree rated Japanese capacitors (as opposed to the 85 degree
Chinese caps typically used). If you check out what the gaming community
favors - and they are pretty hard on power supplies - you'll notice that
many choose this brand.

== 3 of 3 ==
Date: Sat, May 21 2011 9:40 am
From: Man-wai Chang

> Some have had issues with Antec power supplies but I've had no
> problems at all. The don't run 24/7, only when being used. II have 3
> Earthwatts units that auto switch 120/240 and claim high efficiency.
> Quad core Phenom II with 2 HDD normally run 110 Watts checked with a
> Kill-a-Watt. I recommend them.

I have an Antec EA380 running 24/7 without air conditioning. No problem
so far....

--
May the Force & farces be with you!

==============================================================================
TOPIC: another puzzler
http://groups.google.com/group/sci.electronics.repair/t/b80657d8be4c22cd?hl=en
==============================================================================

== 1 of 7 ==
Date: Sat, May 21 2011 1:19 am
From: "Trevor"

"Bill Graham" <weg9@comcast.net> wrote in message
news:nvWdnTXm1reRkUrQnZ2dnUVZ5tOdnZ2d@giganews.com...
> Suppose for the moment that there are two contestants. One picks door two,
> and the other picks door one. Then the moderator opens door three and
> shows everyone that there is a donkey behind that door. Now, will it make
> any difference if the other two switch their initial picks or not? And, if
> they do swap doors, with they both enjoy a 2/3 chance of winning?

It get's really silly now when both switch doors! :-) However neither gets
100% chance of winning and one still loses. They both can't win 66% of the
time however. The problem is that the host can now only open one door if he
is not to pick one already selected, and since his door now has a 1/3 chance
of winning (rather than none as in the original game where he must always
select one that has a goat) NO new information is provided if his is
actually a goat/donkey. Therfore both contestentants now have a 50% chance
of winning whether they switch or not.
This in fact seems far more logical and thus obvious IMO.

Trevor.

== 2 of 7 ==
Date: Sat, May 21 2011 1:31 am
From: spam@spam.com (Don Pearce)

On Fri, 20 May 2011 17:49:12 -0700, "Bill Graham" <weg9@comcast.net>
wrote:

>Dave Platt wrote:
>> In article <bvudndZ-Vc0WKUjQnZ2dnUVZ5tidnZ2d@giganews.com>,
>> Bill Graham <weg9@comcast.net> wrote:
>>
>>> I claqim there are two games. In the first game, you go to the
>>> studio, pick a door, and then go home to wait and see if they call
>>> you and tell you that you either won or lost. Your odds are only 1/3
>>> of winning this game. But if you play the second game, then you go
>>> to the studio and mess around until the host opens up a door and
>>> shown you the donkey behind it. then you can play the game with
>>> 50-50 odds of winning. The only thing I have trouble explaining is
>>> why, in order to play this second game with the better odds, you
>>> have to switch doors. But, in fact, you do have to switch in order
>>> to switch games and take advantage of the better odds.
>>
>> Yup.
>>
>> The distinction between the two games is based on the amount of
>> information available to you at the moment you make your final
>> decision.
>>
>> In the first game, the only information you have is that every door
>> available to you to choose has a 1/3 chance of being correct.
>>
>> In the second game, additional information is given to you by the
>> host, after you make your initial decision and before you make your
>> second one. "The prize is *not* behind that door over there."
>>
>> Actually, you don't *have* to switch doors to "play the second game".
>> You're playing it from the moment the host gives you this extra
>> information. It's just that if you ignore this extra information, and
>> *think* you're still playing the first game (as many people do), you
>> are more likely than not to make a poor choice in the decision you
>> make in this second game.
>
>Suppose for the moment that there are two contestants. One picks door two,
>and the other picks door one. Then the moderator opens door three and shows
>everyone that there is a donkey behind that door. Now, will it make any
>difference if the other two switch their initial picks or not? And, if they
>do swap doors, with they both enjoy a 2/3 chance of winning?

In this scenario, once the third door is opened, they each have a
50/50 chance of winning, and there is no advantage in swapping
choices. Before the revelation their chances of winning were 1/3. If
it seems illogical that the odds are changed by this revelation,
remember that one time in three the host will reveal, not a goat, but
the car.

== 3 of 7 ==
Date: Sat, May 21 2011 2:22 am
From: John Williamson

Don Pearce wrote:
> On Fri, 20 May 2011 17:49:12 -0700, "Bill Graham" <weg9@comcast.net>
> wrote:
>
>> Dave Platt wrote:
>>> In article <bvudndZ-Vc0WKUjQnZ2dnUVZ5tidnZ2d@giganews.com>,
>>> Bill Graham <weg9@comcast.net> wrote:
>>>
>>>> I claqim there are two games. In the first game, you go to the
>>>> studio, pick a door, and then go home to wait and see if they call
>>>> you and tell you that you either won or lost. Your odds are only 1/3
>>>> of winning this game. But if you play the second game, then you go
>>>> to the studio and mess around until the host opens up a door and
>>>> shown you the donkey behind it. then you can play the game with
>>>> 50-50 odds of winning. The only thing I have trouble explaining is
>>>> why, in order to play this second game with the better odds, you
>>>> have to switch doors. But, in fact, you do have to switch in order
>>>> to switch games and take advantage of the better odds.
>>> Yup.
>>>
>>> The distinction between the two games is based on the amount of
>>> information available to you at the moment you make your final
>>> decision.
>>>
>>> In the first game, the only information you have is that every door
>>> available to you to choose has a 1/3 chance of being correct.
>>>
>>> In the second game, additional information is given to you by the
>>> host, after you make your initial decision and before you make your
>>> second one. "The prize is *not* behind that door over there."
>>>
>>> Actually, you don't *have* to switch doors to "play the second game".
>>> You're playing it from the moment the host gives you this extra
>>> information. It's just that if you ignore this extra information, and
>>> *think* you're still playing the first game (as many people do), you
>>> are more likely than not to make a poor choice in the decision you
>>> make in this second game.
>> Suppose for the moment that there are two contestants. One picks door two,
>> and the other picks door one. Then the moderator opens door three and shows
>> everyone that there is a donkey behind that door. Now, will it make any
>> difference if the other two switch their initial picks or not? And, if they
>> do swap doors, with they both enjoy a 2/3 chance of winning?
>
> In this scenario, once the third door is opened, they each have a
> 50/50 chance of winning, and there is no advantage in swapping
> choices. Before the revelation their chances of winning were 1/3. If
> it seems illogical that the odds are changed by this revelation,
> remember that one time in three the host will reveal, not a goat, but
> the car.
>
Only if the host opens a door at random, which isn't the case in the
classic Monty Hall problem. The host knows where the car is, and always
opens one of the other doors.

--
Tciao for Now!

John.

== 4 of 7 ==
Date: Sat, May 21 2011 2:55 am
From: "Trevor"

"John Williamson" <johnwilliamson@btinternet.com> wrote in message
news:93peh8Fro5U1@mid.individual.net...
>>> Suppose for the moment that there are two contestants. One picks door
>>> two, and the other picks door one. Then the moderator opens door three
>>> and shows everyone that there is a donkey behind that door. Now, will it
>>> make any difference if the other two switch their initial picks or not?
>>> And, if they do swap doors, with they both enjoy a 2/3 chance of
>>> winning?
>>
>> In this scenario, once the third door is opened, they each have a
>> 50/50 chance of winning, and there is no advantage in swapping
>> choices. Before the revelation their chances of winning were 1/3. If
>> it seems illogical that the odds are changed by this revelation,
>> remember that one time in three the host will reveal, not a goat, but
>> the car.
>>
> Only if the host opens a door at random, which isn't the case in the
> classic Monty Hall problem. The host knows where the car is, and always
> opens one of the other doors.

Er, the host can't open one of the other doors now, since they have both
already been selected by the two contestants. If he does however, and
reveals a goat, then that contestant now has a ZERO chance of winning
obviously, with the remaining contestant on 66%.
Try actually re-reading the new scenario presented.

Trevor.

== 5 of 7 ==
Date: Sat, May 21 2011 3:56 am
From: spam@spam.com (Don Pearce)

On Sat, 21 May 2011 19:55:55 +1000, "Trevor" <trevor@home.net> wrote:

>
>"John Williamson" <johnwilliamson@btinternet.com> wrote in message
>news:93peh8Fro5U1@mid.individual.net...
>>>> Suppose for the moment that there are two contestants. One picks door
>>>> two, and the other picks door one. Then the moderator opens door three
>>>> and shows everyone that there is a donkey behind that door. Now, will it
>>>> make any difference if the other two switch their initial picks or not?
>>>> And, if they do swap doors, with they both enjoy a 2/3 chance of
>>>> winning?
>>>
>>> In this scenario, once the third door is opened, they each have a
>>> 50/50 chance of winning, and there is no advantage in swapping
>>> choices. Before the revelation their chances of winning were 1/3. If
>>> it seems illogical that the odds are changed by this revelation,
>>> remember that one time in three the host will reveal, not a goat, but
>>> the car.
>>>
>> Only if the host opens a door at random, which isn't the case in the
>> classic Monty Hall problem. The host knows where the car is, and always
>> opens one of the other doors.
>
>Er, the host can't open one of the other doors now, since they have both
>already been selected by the two contestants. If he does however, and
>reveals a goat, then that contestant now has a ZERO chance of winning
>obviously, with the remaining contestant on 66%.
>Try actually re-reading the new scenario presented.
>
>Trevor.
>
I think maybe you need to re-read. Each contestant picks a door, then
the host opens the remaining door. If he exposes a goat, then at least
one of the contestants gets a car. In fact either of the contestants
will get the car, with a 50/50 chance.

== 6 of 7 ==
Date: Sat, May 21 2011 4:56 am
From: PeterD

On 5/20/2011 8:49 PM, Bill Graham wrote:

> Suppose for the moment that there are two contestants. One picks door
> two, and the other picks door one. Then the moderator opens door three
> and shows everyone that there is a donkey behind that door. Now, will it
> make any difference if the other two switch their initial picks or not?
> And, if they do swap doors, with they both enjoy a 2/3 chance of winning?

This is called the Monty Hall problem. And yes, switching does change
the probabilities of winning, and this can be proved with a simple
computer program. I use this in both my math classes when we cover
probabilities, and in my programming classes.

--
I'm never going to grow up.

== 7 of 7 ==
Date: Sat, May 21 2011 7:33 am
From: Smitty Two

In article <ir8997$2gd3$2@pyrite.mv.net>, PeterD <peter2@hipson.net>
wrote:

> On 5/20/2011 8:49 PM, Bill Graham wrote:
>
> > Suppose for the moment that there are two contestants. One picks door
> > two, and the other picks door one. Then the moderator opens door three
> > and shows everyone that there is a donkey behind that door. Now, will it
> > make any difference if the other two switch their initial picks or not?
> > And, if they do swap doors, with they both enjoy a 2/3 chance of winning?
>
> This is called the Monty Hall problem. And yes, switching does change
> the probabilities of winning, and this can be proved with a simple
> computer program. I use this in both my math classes when we cover
> probabilities, and in my programming classes.

Did you just wake up from a long winter's nap?

==============================================================================
TOPIC: Allison needs help kicking Meat Plow off Usenet
http://groups.google.com/group/sci.electronics.repair/t/f8481990f5c47309?hl=en
==============================================================================

== 1 of 2 ==
Date: Sat, May 21 2011 2:37 am
From: josephkk

On Tue, 17 May 2011 19:27:27 -0500, John Fields
<jfields@austininstruments.com> wrote:

>On Tue, 17 May 2011 23:07:00 +0000 (UTC), Meat Plow
><mhywattt@yahoo.com> wrote:
>
>>On Mon, 16 May 2011 03:13:29 -0400, Michael A. Terrell wrote:
>>
>>> Phil Allison wrote:
>>>>
>>>> "Meat Plow"
>>>>
>>>> ** This FUCKWIT troll needs to be kicked off usenet.
>>>>
>>>> Who will help ?
>>>
>>>
>>> No one will lift a finger to help you, Phyllis.
>>
>>I will. Phil, just forward my posts to support@altopia.com
>>with complete headers. That's really all you can do unless
>>you plan a trip to Ohio to blow my brains out. Here's some
>>friendly advise, buy a one way ticket.
>
>---
>Why do you want to take a sad song and not make it better?
>
>Phil's not so bad, he just has zero tolerance for bullshit and
>responds vehemently when he sees it.
>
>What's wrong with that?

There is a serious problem with excessive false positives in Phil's
bullshit detector.

== 2 of 2 ==
Date: Sat, May 21 2011 3:34 am
From: "Phil Allison"

"josephkk"

There is a serious problem with excessive false positives in Phil's
bullshit detector.

** ROTFLMAO !!

No congenital fuckwit like YOU ever admits he is wrong or bullshitting.

.... Phil

==============================================================================
TOPIC: What happened to my hard drive?
http://groups.google.com/group/sci.electronics.repair/t/5638540b7e458b4e?hl=en
==============================================================================

== 1 of 3 ==
Date: Sat, May 21 2011 4:58 am
From: mike

On May 20, 1:17 pm, "Michael A. Terrell" <mike.terr...@earthlink.net>
wrote:
> Shaun wrote:
>
> > It's a 40 Gb drive, very old technology. Just through it out and buy a new
> > drive. You'll probably get a 500 Gb for $30 some dollars.
>
> That kind of defeats the reason for having a repair REPAIR newsgroup.
>
Just a follow-up on the drive - whatever happened to it, neither the
electronics
nor the recording-media part of it work any more. After careful
inspection, there
are no problems with bent pins, or other physical problems apparent.
I spose
I might have an intermittent IDE cable which only acted up maybe a
couple of times
during the dozens of cyclings of various programs and test runs, but
the cables on
there are the kink with an extra gizmo to pull the cable lose from
the plug without
stressing the cable-to-plug connection. Anyway, thanks to all for
the suggestions,
I was successful at least in learning a bit more about how hard
drives work.

Mikel

== 2 of 3 ==
Date: Sat, May 21 2011 9:07 am
From: Mysterious Traveler

On 05/21/2011 06:58 AM, mike wrote:
> On May 20, 1:17 pm, "Michael A. Terrell"<mike.terr...@earthlink.net>
> wrote:
>> Shaun wrote:
>>
>>> It's a 40 Gb drive, very old technology. Just through it out and buy a new
>>> drive. You'll probably get a 500 Gb for $30 some dollars.
>>
>> That kind of defeats the reason for having a repair REPAIR newsgroup.
>>
> Just a follow-up on the drive - whatever happened to it, neither the
> electronics
> nor the recording-media part of it work any more. After careful
> inspection, there
> are no problems with bent pins, or other physical problems apparent.
> I spose
> I might have an intermittent IDE cable which only acted up maybe a
> couple of times
> during the dozens of cyclings of various programs and test runs, but
> the cables on
> there are the kink with an extra gizmo to pull the cable lose from
> the plug without
> stressing the cable-to-plug connection. Anyway, thanks to all for
> the suggestions,
> I was successful at least in learning a bit more about how hard
> drives work.
>
> Mikel
There is a 80gig IDE drive for $18.99 at
http://www.geeks.com/products.asp?cat=HDD

--
Did the rapture happen yet?

== 3 of 3 ==
Date: Sat, May 21 2011 1:37 pm
From: mike

On May 21, 12:07 pm, Mysterious Traveler <mysterious.trave...@dot.net>
wrote:

>
> There is a 80gig IDE drive for $18.99 athttp://www.geeks.com/products.asp?cat=HDD
>
> --
> Did the rapture happen yet?

Good price, but if I needed a disk I think I'd do a little research
and see if there isn't
one with double or thrice the capacity for a few bucks more that has
some kind of decent
reputation - if there is such a thing.

However, I wouldn't buy anything from computer geeks, they cured me of
long distance shopping
a few years ago when they did the ole bait and switch trick on me,
maybe they're better now
but at the time they were selling crap that didn't work.

Mike

==============================================================================
TOPIC: AM/FM radio troubleshooting
http://groups.google.com/group/sci.electronics.repair/t/9e2ca200c549afdd?hl=en
==============================================================================

== 1 of 7 ==
Date: Sat, May 21 2011 6:59 am
From: Robert Macy

On May 20, 3:21 pm, klem kedidelhopper <captainvideo462...@gmail.com>
wrote:
> I have a Grundig "Transistor 305" portable radio. It uses germanium
> transistors. I've had this thing for over forty years and although I
> don't use it often it has been a nice radio. In 1971 I replaced the
> transistor in the FM detector circuit and I have had no problems with
> it until just recently. Last month I spent three days in the hospital
> and I brought the Grundig with me. I noticed that after it was on for
> about a half hour it would start to cut out. I turned it off and then
> later turned it on again, and after a period of time it happened
> again. After several similar episodes I stopped using it. I wondered
> about some type of interference from the hospital but that was wishful
> thinking. In any case being in no position to test it I decided to
> just put it away. Yesterday I put it on the bench and took a look at
> it. Sure enough after a brief time it cut out again. I injected a
> signal, (my finger on a small screwdriver) onto the wiper of the
> volume control and ascertained that there is nothing wrong up to the
> speaker. So now I need to get into the IF's and detector. My problem
> is my old signal generators are not working and all I can come up with
> for 10.7MHZ. is a CW signal out of my MFJ249 SWR meter. The MFJ puts
> out a clean signal however it is CW, and it's amplitude is not
> adjustable. I don't think that an unmodulated signal would be a
> problem in this application but I don't know what the amplitude of the
> MFJ is and I would hate to blow up an otherwise good IF amplifier with
> an excessive signal. I''m admittedly a bit rusty having not trouble
> shot an IF amplifier/detector circuit in many years so does anyone
> have a feel for how I might signal trace this radio with what I have
> on hand? Thanks very much for any advice. Lenny

I would first look at mechanical failure of the connections. ...PCB/
traces/etc.

Especially around the FM Detector area where you heat shocked the PCB
when changing that transistor.

I know it's hard to believe battery can heat that much but with age on
a PCB, you'd be surprised. Ever try cold spray when radio failed?

== 2 of 7 ==
Date: Sat, May 21 2011 7:05 am
From: "N_Cook"

klem kedidelhopper <captainvideo462009@gmail.com> wrote in message
news:d384fa64-4fcf-42c3-b061-1c0a786f3c15@p23g2000vbl.googlegroups.com...
> I have a Grundig "Transistor 305" portable radio. It uses germanium
> transistors. I've had this thing for over forty years and although I
> don't use it often it has been a nice radio. In 1971 I replaced the
> transistor in the FM detector circuit and I have had no problems with
> it until just recently. Last month I spent three days in the hospital
> and I brought the Grundig with me. I noticed that after it was on for
> about a half hour it would start to cut out. I turned it off and then
> later turned it on again, and after a period of time it happened
> again. After several similar episodes I stopped using it. I wondered
> about some type of interference from the hospital but that was wishful
> thinking. In any case being in no position to test it I decided to
> just put it away. Yesterday I put it on the bench and took a look at
> it. Sure enough after a brief time it cut out again. I injected a
> signal, (my finger on a small screwdriver) onto the wiper of the
> volume control and ascertained that there is nothing wrong up to the
> speaker. So now I need to get into the IF's and detector. My problem
> is my old signal generators are not working and all I can come up with
> for 10.7MHZ. is a CW signal out of my MFJ249 SWR meter. The MFJ puts
> out a clean signal however it is CW, and it's amplitude is not
> adjustable. I don't think that an unmodulated signal would be a
> problem in this application but I don't know what the amplitude of the
> MFJ is and I would hate to blow up an otherwise good IF amplifier with
> an excessive signal. I''m admittedly a bit rusty having not trouble
> shot an IF amplifier/detector circuit in many years so does anyone
> have a feel for how I might signal trace this radio with what I have
> on hand? Thanks very much for any advice. Lenny

Any 4 pin Ge transistors in there? if there is then the usual simple fudge
is worth a try

== 3 of 7 ==
Date: Sat, May 21 2011 8:06 am
From: klem kedidelhopper

On May 21, 10:05 am, "N_Cook" <dive...@tcp.co.uk> wrote:
> klem kedidelhopper <captainvideo462...@gmail.com> wrote in message
>
> news:d384fa64-4fcf-42c3-b061-1c0a786f3c15@p23g2000vbl.googlegroups.com...
>
>
>
> > I have a Grundig "Transistor 305" portable radio. It uses germanium
> > transistors. I've had this thing for over forty years and although I
> > don't use it often it has been a nice radio. In 1971 I replaced the
> > transistor in the FM detector circuit and I have had no problems with
> > it until just recently. Last month I spent three days in the hospital
> > and I brought the Grundig with me. I noticed that after it was on for
> > about a half hour it would start to cut out. I turned it off and then
> > later turned it on again, and after a period of time it happened
> > again. After several similar episodes I stopped using it. I wondered
> > about some type of interference from the hospital but that was wishful
> > thinking. In any case being in no position to test it I decided to
> > just put it away. Yesterday I put it on the bench and took a look at
> > it. Sure enough after a brief time it cut out again. I injected a
> > signal, (my finger on a small screwdriver) onto the wiper of the
> > volume control and ascertained that there is nothing wrong up to the
> > speaker. So now I need to get into the IF's and detector. My problem
> > is my old signal generators are not working and all I can come up with
> > for 10.7MHZ. is a CW signal out of my MFJ249 SWR meter. The MFJ puts
> > out a clean signal however it is CW, and it's amplitude is not
> > adjustable. I don't think that an unmodulated signal would be a
> > problem in this application but I don't know what the amplitude of the
> > MFJ is and I would hate to blow up an otherwise good IF amplifier with
> > an excessive signal. I''m admittedly a bit rusty having not trouble
> > shot an IF amplifier/detector circuit in many years so does anyone
> > have a feel for how I might signal trace this radio with what I have
> > on hand? Thanks very much for any advice. Lenny
>
> Any 4 pin Ge transistors in there? if there is then the usual simple fudge
> is worth a try

Well the AM is not working either when this set fails. And since the
set uses the same transistors but different coils for each stage that
doesn't really help me to track this down. I could look at the CW
signal from the 249 with my 50MHZ. scope or my spectrum analyzer but I
still don't know what a safe signal amplitude would be. Does anyone
know what the proper typical amplitude of an IF signal would be so
that I would be able to simulate this and inject this signal into the
IF amplifiers and detector stage? BTW except for the outputs, they're
all 4 pin GE transistors. What do you mean by the "simple fudge"?
Thanks, Lenny

== 4 of 7 ==
Date: Sat, May 21 2011 8:50 am
From: "William Sommerwerck"

One might reasonably assume that the IF signal would not have a peak-to-peak
value larger than the net forward bias on the IF transistors. You can be
reasonably certain a signal of that level will not damage the transistors.

== 5 of 7 ==
Date: Sat, May 21 2011 2:19 pm
From: John-Del

On May 20, 11:40 pm, "Phil Allison" <phi...@tpg.com.au> wrote:

> ** Might be another dodgy chemical fuse - eh ??
>
> .... Phil

Fuses, chemical or not, don't become intermittent.

Idiot.

John

== 6 of 7 ==
Date: Sat, May 21 2011 2:22 pm
From: "Ian Field"

"klem kedidelhopper" <captainvideo462009@gmail.com> wrote in message
news:61935a1d-3c6e-424a-893e-6e1f36ce8608@g3g2000vbl.googlegroups.com...
On May 21, 10:05 am, "N_Cook" <dive...@tcp.co.uk> wrote:
> klem kedidelhopper <captainvideo462...@gmail.com> wrote in message
>
> news:d384fa64-4fcf-42c3-b061-1c0a786f3c15@p23g2000vbl.googlegroups.com...
>
>
>
> > I have a Grundig "Transistor 305" portable radio. It uses germanium
> > transistors. I've had this thing for over forty years and although I
> > don't use it often it has been a nice radio. In 1971 I replaced the
> > transistor in the FM detector circuit and I have had no problems with
> > it until just recently. Last month I spent three days in the hospital
> > and I brought the Grundig with me. I noticed that after it was on for
> > about a half hour it would start to cut out. I turned it off and then
> > later turned it on again, and after a period of time it happened
> > again. After several similar episodes I stopped using it. I wondered
> > about some type of interference from the hospital but that was wishful
> > thinking. In any case being in no position to test it I decided to
> > just put it away. Yesterday I put it on the bench and took a look at
> > it. Sure enough after a brief time it cut out again. I injected a
> > signal, (my finger on a small screwdriver) onto the wiper of the
> > volume control and ascertained that there is nothing wrong up to the
> > speaker. So now I need to get into the IF's and detector. My problem
> > is my old signal generators are not working and all I can come up with
> > for 10.7MHZ. is a CW signal out of my MFJ249 SWR meter. The MFJ puts
> > out a clean signal however it is CW, and it's amplitude is not
> > adjustable. I don't think that an unmodulated signal would be a
> > problem in this application but I don't know what the amplitude of the
> > MFJ is and I would hate to blow up an otherwise good IF amplifier with
> > an excessive signal. I''m admittedly a bit rusty having not trouble
> > shot an IF amplifier/detector circuit in many years so does anyone
> > have a feel for how I might signal trace this radio with what I have
> > on hand? Thanks very much for any advice. Lenny
>
> Any 4 pin Ge transistors in there? if there is then the usual simple fudge
> is worth a try

Well the AM is not working either when this set fails. And since the
set uses the same transistors but different coils for each stage

Does it have the old TO7 transistors like OC170/171/AF116/117 etc?

They're prone to internal whiskering, most commonly the can/screen to one of
the 3 electrodes, lifting the screen lead might get it going, some people
zap the whiskers with 47uF charged to 50V (twist C,B & E together first).

If the whiskers have reached 2 or more electrodes you're pretty much
stuffed, some people use BF450/451 as replacements but you usually have to
tweak the base bias resistors to suit silicon 0.7V and you might have to
align out the different collector capacitance (do one stage at a time).

If you have extreme manual dexterity and bloody good eyesight you can melt
the solder seal between can & header and put the TO92 inside the TO7 can to
preserve the appearance of originality.

== 7 of 7 ==
Date: Sat, May 21 2011 5:01 pm
From: "Phil Allison"

"John-Del"
"Phil Allison"

> ** Might be another dodgy chemical fuse - eh ??
>

Fuses, chemical or not, don't become intermittent.

** Then you have not seen everything.

Imbecile.

... Phil

==============================================================================
TOPIC: Randall RG100G3 powerFET amp
http://groups.google.com/group/sci.electronics.repair/t/57d83a13c4840b3c?hl=en
==============================================================================

== 1 of 1 ==
Date: Sat, May 21 2011 7:03 am
From: "N_Cook"

Off centre hole is 0.3mm displaced vertically. No first rank manufacturer
would have that amount of engineering departure from the industry TOP3
dimensions

==============================================================================
TOPIC: Updated List 2011. Solutions Manuals, Instructor Manuals & Test Banks
Collection. Largest Collection Over The Net !!!
http://groups.google.com/group/sci.electronics.repair/t/32ad192680121675?hl=en
==============================================================================

== 1 of 1 ==
Date: Sat, May 21 2011 9:05 am
From: "TestBank(dot)Net"

We would like to inform you that We have updated our list with the
following titles !!

Note: This is the updated part of our full list.
( testbanknet.blogspot(dot)com )

You can contact us directly at REQUEST(at)TESTBANK(dot)NET

Or visit our website for more information (TESTBANK.NET)

============================================================================

Accounting Information Systems, 9th Edition 2012,
Gelinas.Dull.Wheeler, Solutions Manual

Accounting Information Systems, 9th Edition 2012,
Gelinas.Dull.Wheeler, Test Bank

Accounting, 24th Edition, Warren.Reeve.Duchac, Solutions Manual

Accounting, 24th Edition, Warren.Reeve.Duchac, Test Bank

Accounting; Text and Cases, 13th Edition 2011,
Anthony.Hawkins.Merchant, Instructor Manual & Solutions Manual

Accounting; Tools for Business Decision Makers, 4th Edition,
Kimmel.Weygandt.Kieso, Instructor Manual & Solutions Manual

Accounting; Tools for Business Decision Makers, 4th Edition,
Kimmel.Weygandt.Kieso, Test Bank

Adobe Dreamweaver CS5 Illustrated, 1st Edition 2011, Sherry Bishop,
Instructor Manual & Solutions Manual

Adobe Dreamweaver CS5 Illustrated, 1st Edition 2011, Sherry Bishop,
Test Bank

Adobe Dreamweaver CS5 Revealed, 1st Edition 2011, Sherry Bishop,
Instructor Manual & Solutions Manual

Adobe Dreamweaver CS5 Revealed, 1st Edition 2011, Sherry Bishop, Test
Bank

Adobe Flash CS5 Revealed, 1st Edition 2011, Jim Shuman, Instructor
Manual & Solutions Manual

Adobe Flash CS5 Revealed, 1st Edition 2011, Jim Shuman, Test Bank

Adobe Flash Professional CS5 Illustrated_Introductory, 1st Edition
2011, Waxer, Instructor Manual & Solutions Manual

Adobe Flash Professional CS5 Illustrated_Introductory, 1st Edition
2011, Waxer, Test Bank

Adober Photoshopr CS5 Revealed, 1st Edition 2011, Elizabeth Eisner
Reding, Instructor Manual & Solutions Manual

Adober Photoshopr CS5 Revealed, 1st Edition 2011, Elizabeth Eisner
Reding, Test Bank

America Past and Present_Combined Volume, 9th Edition,
Divine.Breen.Fredrickson.Williams.Gross.Brands, Instructor Manual

America Past and Present_Combined Volume, 9th Edition,
Divine.Breen.Fredrickson.Williams.Gross.Brands, Test Bank

America Past and Present_Volume 1 (to 1877), 8th Edition,
Divine.Breen.Fredrickson.Williams.Gross.Brands, Instructor Manual

America Past and Present_Volume 1 (to 1877), 8th Edition,
Divine.Breen.Fredrickson.Williams.Gross.Brands, Instructor Manual,
Test Bank

Archetypes of Wisdom; An Introduction to Philosophy, 7th Edition,
Soccio, Instructor Manual

Archetypes of Wisdom; An Introduction to Philosophy, 7th Edition,
Soccio, Test Bank

Auditing and Assurance Service; Understanding the Integrated Audit,
1st Edition, Hooks, Instructor Manual & Solutions Manual

Auditing and Assurance Service; Understanding the Integrated Audit,
1st Edition, Hooks, Test Bank

Basic College Mathematics, 2nd Edition, Miller.O'Neill.Hyde,
Instructor Manual & Solutions Manual

Basic College Mathematics, 2nd Edition, Miller.O'Neill.Hyde, Test Bank

Basic Marketing; A Marketing Strategy Planning Approach, 18th Edition
2011, Perreault.Cannon.McCarthy, Instructor Manual & Solutions Manual

Basic Marketing; A Marketing Strategy Planning Approach, 18th Edition
2011, Perreault.Cannon.McCarthy, Test Bank

Basic Statistics; Tales of Distributions, 10th Edition 2011, Chris
Spatz, Test Bank

Becoming a Master Manager; A Competing Values Approach, 5th Edition,
Quinn.Faerman.Thompson.McGrath.Clair, Instructor Manual

Becoming a Master Manager; A Competing Values Approach, 5th Edition,
Quinn.Faerman.Thompson.McGrath.Clair, Test Bank

Beginning Algebra, 3rd Edition, Miller.O'Neill.Hyde, Instructor Manual
& Solutions Manual

Beginning Algebra, 3rd Edition, Miller.O'Neill.Hyde, Test Bank

Beginning and Intermediate Algebra, 3rd Edition 2011,
Miller.O'Neill.Hyde, Instructor Manual & Solutions Manual

Beginning and Intermediate Algebra, 3rd Edition 2011,
Miller.O'Neill.Hyde, Test Bank

Behavior Modification; What It Is and How To Do It, 9th Edition,
Martin.Pear, Instructor Manual

Behavior Modification; What It Is and How To Do It, 9th Edition,
Martin.Pear, Test Bank

Biochemistry, 4th Edition, Voet.Voet, Instructor Manual

Biochemistry, 4th Edition, Voet.Voet, Test Bank

Biopsychology, 8th Edition 2011, Pinel, Instructor Manual

Biopsychology, 8th Edition 2011, Pinel, Test Bank

Business Communication; Process and Product, 7th Edition,
Guffey.Loewy, Instructor Manual & Solutions Manual

Business Communication; Process and Product, 7th Edition,
Guffey.Loewy, Test Bank

Business Driven Information Systems, 2nd Edition, Baltzan.Phillips,
Instructor Manual & Solutions Manual

Business Driven Information Systems, 2nd Edition, Baltzan.Phillips,
Test Bank

Business Driven Technology, 4th Edition, Baltzan.Phillips, Instructor
Manual

Business Driven Technology, 4th Edition, Baltzan.Phillips, Test Bank

Business Ethics; Decision Making for Personal Integrity & Social
Responsibility, 2nd Edition 2011, Hartman.DesJardins, Instructor
Manual

Business Ethics; Decision Making for Personal Integrity & Social
Responsibility, 2nd Edition 2011, Hartman.DesJardins, Test Bank

Business Law; Text and Cases; Legal_Ethical_Global_and Corporate
Environment, 12th Edition, Clarkson.Miller.Cross, Instructor Manual &
Solutions Manual

Business Law; Text and Cases; Legal_Ethical_Global_and Corporate
Environment, 12th Edition, Clarkson.Miller.Cross, Test Bank

Business Statistics; Contemporary Decision Making, 6th Edition, Black,
Instructor Manual

Business, 11th Edition, Pride.Hughes.Kapoor, Test Bank

Calculus for Business_Economics_and the Social and Life Sciences, 10th
Edition, Hoffmann.Bradley, Instructor Manual & Solutions Manual

Calculus for Business_Economics_and the Social and Life Sciences, 10th
Edition, Hoffmann.Bradley, Test Bank

Calculus Late Transcendentals Combined, 9th Edition,
Anton.Bivens.Davis, Solutions Manual

Calculus Late Transcendentals Combined, 9th Edition,
Anton.Bivens.Davis, Test Bank

Calculus of a Single Variable, 8th Edition, Larson.Hostetler.Edwards,
Test Bank

Campbell Biology with MasteringBiologyr, 9th Edition,
Reece.Urry.Cain.Wasserman.Minorsky.Jackson, Instructor Manual

Campbell Biology with MasteringBiologyr, 9th Edition,
Reece.Urry.Cain.Wasserman.Minorsky.Jackson, Test Bank

Cell Biology, 6th Edition, Karp, Instructor Manual

Cell Biology, 6th Edition, Karp, Test Bank

Cengage Advantage Books; Business Law, 8th Edition 2011,
Goldman.Sigismond, Instructor Manual

Cengage Advantage Books; Business Law, 8th Edition 2011,
Goldman.Sigismond, Test Bank

Chemistry, 1st Edition, Julia Burdge, Instructor Manual & Solutions
Manual

Chemistry, 1st Edition, Julia Burdge, Test Bank

Chemistry, 2nd Edition 2011, Julia Burdge, Instructor Manual &
Solutions Manual

Chemistry, 2nd Edition 2011, Julia Burdge, Test Bank

Chemistry; Structure and Dynamics, 5th Edition,
Spencer.Bodner.Rickard, Solutions Manual

College Algebra Essentials, 2nd Edition, John Coburn, Instructor
Manual & Solutions Manual

College Algebra Essentials, 2nd Edition, John Coburn, Test Bank

College Algebra, 1st Edition, Kirk Trigsted, Test Bank

College Algebra, 2nd Edition, John Coburn, Instructor Manual &
Solutions Manual

College Algebra, 2nd Edition, John Coburn, Test Bank

Competency-Based Management, 11th Edition, Slocum.Jackson.Hellriegel,
Instructor Manual

Competency-Based Management, 11th Edition, Slocum.Jackson.Hellriegel,
Test Bank

Computer Graphics with Open GL, 4th Edition, Hearn.Baker.Carithers,
Solutions Manual

Contemporary World Regional; Geography Global Connections_Local
Voices, 3rd Edition, Bradshaw.White.Dymond.Chacko, Test Bank

Core Concepts of Government and Not-For-Profit Accounting, 2nd
Edition, Granof.Wardlow, Solutions Manual

Core Concepts of Government and Not-For-Profit Accounting, 2nd
Edition, Granof.Wardlow, Test Bank

Corporate Finance; Core Principles and Applications, 3rd Edition 2011,
Ross.Westerfield.Jaffe.Jordan, Instructor Manual & Solutions Manual

Corporate Finance; Core Principles and Applications, 3rd Edition 2011,
Ross.Westerfield.Jaffe.Jordan, Test Bank

Countries and Concepts; Politics_Geography_Culture, 11th Edition,
Roskin, Instructor Manual

Countries and Concepts; Politics_Geography_Culture, 11th Edition,
Roskin, Test Bank

Criminal Behavior; A Psychological Approach, 9th Edition,
Bartol.Bartol, Instructor Manual

Criminal Behavior; A Psychological Approach, 9th Edition,
Bartol.Bartol, Test Bank

Criminal Investigation, 8th Edition, Bennett.Hess, Instructor Manual

Criminal Investigation, 8th Edition, Bennett.Hess, Test Bank

Criminal Investigation, 9th Edition, Hess.Orthmann, Instructor Manual

Criminal Investigation, 9th Edition, Hess.Orthmann, Test Bank

Cultural ANTHRO, 1st Edition 2012, Robbins, Instructor Manual

Cultural ANTHRO, 1st Edition 2012, Robbins, Test Bank

Data Structures and Algorithms in Java, 5th Edition,
Goodrich.Tamassia, Solutions Manual

Data Structures; Abstraction and Design Using Java, 2nd Edition,
Koffman.Wolfgang, Solutions Manual

Data Structures; Abstraction and Design Using Java, 2nd Edition,
Koffman.Wolfgang, Test Bank

Development Through the Lifespan, 5th Edition, Berk, Instructor Manual

Development Through the Lifespan, 5th Edition, Berk, Test Bank

Deviant Behavior, 10th Edition, Alex Thio, Instructor Manual

Deviant Behavior, 10th Edition, Alex Thio, Test Bank

Digital Design with RTL Design_Verilog and VHDL , 2nd Edition, Vahid,
Solutions Manual

Digital Systems; Principles and Applications, 11th Edition 2011,
Tocci.Widmer.Moss, Instructor Manual & Solutions Manual

Digital Systems; Principles and Applications, 11th Edition 2011,
Tocci.Widmer.Moss, Test Bank

Discovering the Humanities, 1st Edition, Sayre, Instructor Manual

Discovering the Humanities, 1st Edition, Sayre, Test Bank

Economics, 10th Edition 2011, Arnold, Instructor Manual

Economics, 10th Edition 2011, Arnold, Test Bank

Electromagnetics, 1st Edition 2011, Notaros, Solutions Manual

Elementary Number Theory, 6th Edition, Rosen, Solutions Manual

Elementary Statistics, 6th Edition, Allan Bluman, Solutions Manual

Engineering Mechanics of Solids, 2nd Edition, Popov, Solutions Manual

Entrepreneurial Small Business, 2nd Edition, Katz.Green, Instructor
Manual

Entrepreneurial Small Business, 2nd Edition, Katz.Green, Test Bank

Environmental & Natural Resource Economics, 8th Edition,
Tietenberg.Tietenberg, Instructor Manual

Environmental Geology, 1st Edition 2011, Reichard, Instructor Manual

Environmental Geology, 1st Edition 2011, Reichard, Test Bank

Environmental Geology, 9th Edition 2011, Montgomery, Instructor Manual

Environmental Geology, 9th Edition 2011, Montgomery, Test Bank

Essential Biochemistry, 2nd Edition, Pratt.Cornely, Test Bank

Essentials of Human Anatomy and Physiology with Essentials of
Interactive Physiology CD-ROM, 10th Edition, Marieb, Test Bank

Essentials of Strategic Management, 5th Edition, Hunger.Wheelen,
Instructor Manual

Essentials of Strategic Management, 5th Edition, Hunger.Wheelen, Test
Bank

Essentials of World Regional Geography, 2nd Edition,
White.Dymond.Chacko.Bradshaw, Instructor Manual

Essentials of World Regional Geography, 2nd Edition,
White.Dymond.Chacko.Bradshaw, Test Bank

Exploring Microsoft Office 2010 Plus, 1st Edition 2011,
Grauer.Poatsy.Poatsy.Hulett.Krebs.Mast.Mulbery.Hogan, Instructor
Manual & Solutions Manual

Exploring Microsoft Office 2010 Plus, 1st Edition 2011,
Grauer.Poatsy.Poatsy.Hulett.Krebs.Mast.Mulbery.Hogan, Test Bank

Exploring Microsoft Office 2010 Volume 2, 1st Edition 2011,
Grauer.Poatsy.Poatsy.Hulett.Krebs.Mast.Mulbery.Hogan, Instructor
Manual & Solutions Manual

Exploring Microsoft Office 2010 Volume 2, 1st Edition 2011,
Grauer.Poatsy.Poatsy.Hulett.Krebs.Mast.Mulbery.Hogan, Test Bank

Families in Canada, 3rd Edition, White.Larson.Goltz.Munro, Test Bank

Financial Accounting Fundamentals, 3rd Edition 2011, Wild, Instructor
Manual & Solutions Manual

Financial Accounting Fundamentals, 3rd Edition 2011, Wild, Test Bank

Financial Accounting Theory and Analysis; Text and Cases, 10th
Edition, Schroeder.Clark.Cathey, Solutions Manual

Financial Accounting Theory and Analysis; Text and Cases, 10th
Edition, Schroeder.Clark.Cathey, Test Bank

Financial Accounting, 7th Edition 2011, Libby.Libby.Short, Instructor
Manual & Solutions Manual

Financial Accounting, 7th Edition 2011, Libby.Libby.Short, Test Bank

Financial Accounting; IFRS Edition, 1st Edition,
Weygandt.Kimmel.Kieso, Instructor Manual & Solutions Manual

Financial Accounting; IFRS Edition, 1st Edition,
Weygandt.Kimmel.Kieso, Test Bank

Fluid Mechanics, 7th Edition 2011, White, Solutions Manual

Fluid Mechanics; Fundamentals and Applications, 2nd Edition,
Cengel.Cimbala, Solutions Manual

Fluid Power with Applications, 7th Edition, Anthony Esposito,
Instructor Manual

Foodservice Organizations; A Managerial and Systems Approach, 7th
Edition, Gregoire, Instructor Manual

Foodservice Organizations; A Managerial and Systems Approach, 7th
Edition, Gregoire, Test Bank

Forensic Accounting and Fraud Examination, 1st Edition,
Kranacher.Riley.Wells, Solutions Manual

Forensic Accounting and Fraud Examination, 1st Edition,
Kranacher.Riley.Wells, Test Bank

Foundations in Microbiology, 7th Edition, Kathleen Talaro, Test Bank

Fundamental Accounting Principles, 20th Edition, Wild.Shaw.Chiappetta,
Instructor Manual & Solutions Manual

Fundamental Accounting Principles, 20th Edition, Wild.Shaw.Chiappetta,
Test Bank

Fundamental Managerial Accounting Concepts, 6th Edition 2011,
Edmonds.Tsay.Olds, Instructor Manual & Solutions Manual

Fundamental Managerial Accounting Concepts, 6th Edition 2011,
Edmonds.Tsay.Olds, Test Bank

Fundamentals of Electric Circuits, 4th Edition, Alexander.Sadiku,
Solutions Manual

Fundamentals of Financial Accounting, 3rd Edition,
Phillips.Libby.Libby, Instructor Manual & Solutions Manual

Fundamentals of Financial Accounting, 3rd Edition,
Phillips.Libby.Libby, Test Bank

Fundamentals of Human Resource Management, 4th Edition 2011,
Noe.Hollenbeck.Gerhart.Wright, Instructor Manual

Fundamentals of Human Resource Management, 4th Edition 2011,
Noe.Hollenbeck.Gerhart.Wright, Test Bank

Fundamentals of Materials Science and Engineering; An Integrated
Approach, 3rd Edition, Callister.Rethwisch, Instructor Manual &
Solutions Manual

Fundamentals of Selling, 11th Edition, Futrell, Instructor Manual

Fundamentals of Selling, 11th Edition, Futrell, Test Bank

General Chemistry, 6th Edition, Chang.Overby, Instructor Manual &
Solutions Manual

General Chemistry, 6th Edition, Chang.Overby, Test Bank

General Organic and Biological Chemistry, 3rd Edition, Raymond,
Instructor Manual & Solutions Manual

General Organic and Biological Chemistry, 3rd Edition, Raymond, Test
Bank

Genetics, 3rd Edition, Brooker, Test Bank

Group Dynamics, 5th Edition, Forsyth, Instructor Manual

Group Dynamics, 5th Edition, Forsyth, Test Bank

Hands-On Ethical Hacking and Network Defense, 2nd Edition,
Simpson.Backman.Corley, Instructor Manual & Solutions Manual

Hands-On Ethical Hacking and Network Defense, 2nd Edition,
Simpson.Backman.Corley, Test Bank

History of Modern Design, 2nd Edition, David Raizman, Instructor
Manual

How Things Work The Physics of Everyday Life, 4th Edition, Bloomfield,
Solutions Manual

Human Resource Management, 10th Edition 2011, Byars.Rue, Instructor
Manual

Human Resource Management, 10th Edition 2011, Byars.Rue, Test Bank

Human Resource Management, 10th Edition, DeCenzo, Instructor Manual

Human Resource Management, 10th Edition, DeCenzo, Test Bank

Human Resource Management, 2nd Edition, Stewart.Brown, Instructor
Manual

Human Resource Management, 2nd Edition, Stewart.Brown, Test Bank

Income Tax Fundamentals 2011, 29th Edition 2011, Whittenburg.Altus-
Buller, Solutions Manual

Income Tax Fundamentals 2011, 29th Edition 2011, Whittenburg.Altus-
Buller, Test Bank

Intermediate Algebra, 3rd Edition, Miller.O'Neill.Hyde, Instructor
Manual & Solutions Manual

Intermediate Algebra, 3rd Edition, Miller.O'Neill.Hyde, Test Bank

Intermediate Algebra; A Real World Approach, 3rd Edition, Bello.Hopf,
Solutions Manual

Intermediate Algebra; A Real World Approach, 3rd Edition, Bello.Hopf,
Test Bank

International Economics, 13th Edition 2011, Robert Carbaugh,
Instructor Manual

International Economics, 13th Edition 2011, Robert Carbaugh, Test Bank

Introduction to Accounting; An Integrated Approach, 6th Edition 2011,
Ainsworth.Deines, Instructor Manual & Solutions Manual

Introduction to Accounting; An Integrated Approach, 6th Edition 2011,
Ainsworth.Deines, Test Bank

Introduction to Chemistry, 13th edition, Hein.Arena, Solutions Manual

Introduction to Chemistry, 13th edition, Hein.Arena, Test Bank

Introduction to Criminal Justice, 12th Edition, Siegel, Instructor
Manual

Introduction to Criminal Justice, 12th Edition, Siegel, Test Bank

Introduction to Criminal Justice, 13th Edition, Siegel.Worrall,
Instructor Manual

Introduction to Criminal Justice, 13th Edition, Siegel.Worrall, Test
Bank

Introduction to Finance; Markets_Investments_and Financial Management,
14th Edition, Melicher.Norton, Instructor Manual

Introduction to Finance; Markets_Investments_and Financial Management,
14th Edition, Melicher.Norton, Test Bank

Introduction to Geotechnical Engineering, 2nd Edition,
Holtz.Kovacs.Sheahan, Solutions Manual

Introduction to Management Science; A Modeling and Case Studies
Approach with Spreadsheets, 4th Edition, Hillier.Hillier, Instructor
Manual & Solutions Manual

Introduction to Mechatronics and Measurement Systems, 3rd Edition,
Alciatore.Histand, Solutions Manual

Introduction to Organic Chemistry, 4th Edition, Brown.Poon, Solutions
Manual

Introduction to Organic Chemistry, 4th Edition, Brown.Poon, Test Bank

Introduction to Physics, 8th Edition, Cutnell.Johnson, Solutions
Manual

Introduction to Physics, 8th Edition, Cutnell.Johnson, Test Bank

Introduction to Thermodynamics and Heat Transfer, 2nd Edition, Cengel.
€engel, Solutions Manual

Introduction to Wireless and Mobile Systems, 3rd Edition 2011,
Agrawal.Qing-An Zeng, Solutions Manual

Introductory Algebra; A Real World Approach, 3rd Edition, Ignacio
Bello, Solutions Manual

Introductory Algebra; A Real World Approach, 3rd Edition, Ignacio
Bello, Test Bank

Introductory Statistics, 7th Edition, Mann, Test Bank

Investments; Principles and Concepts, 11th Edition, Jones, Instructor
Manual & Solutions Manual

Investments; Principles and Concepts, 11th Edition, Jones, Test Bank

Java Foundations; Introduction to Program Design and Data Structures,
2nd Edition, Lewis.DePasquale.Chase, Solutions Manual

Java Foundations; Introduction to Program Design and Data Structures,
2nd Edition, Lewis.DePasquale.Chase, Test Bank

Learning the Art of Helping; Building Blocks and Techniques, 4th
Edition, Young, Instructor Manual

Learning the Art of Helping; Building Blocks and Techniques, 4th
Edition, Young, Test Bank

Macroeconomics, 10th Edition 2011, Arnold, Instructor Manual

Macroeconomics, 10th Edition 2011, Arnold, Test Bank

Management Information Systems; Managing the Digital Firm, 5th
Edition, Laudon, Instructor Manual

Management Information Systems; Managing the Digital Firm, 5th
Edition, Laudon, Test Bank

Management, 11th Edition, Schermerhorn, Instructor Manual

Management, 11th Edition, Schermerhorn, Test Bank

Managerial Accounting, 1st Edition, Oliver.Horngren, Instructor Manual
& Solutions Manual

Managerial Accounting, 1st Edition, Oliver.Horngren, Test Bank

Managerial Accounting; Creating Value in a Dynamic Business
Environment, 9th Edition 2011, Hilton, Instructor Manual & Solutions
Manual

Managerial Accounting; Creating Value in a Dynamic Business
Environment, 9th Edition 2011, Hilton, Test Bank

Managerial Economics, 10th Edition 2011, Thomas.Maurice, Instructor
Manual

Managerial Economics, 10th Edition 2011, Thomas.Maurice, Test Bank

Managerial Economics; Analysis_Problems_Cases, 8th Edition, Truett,
Instructor Manual

Managerial Economics; Analysis_Problems_Cases, 8th Edition, Truett,
Test Bank

Managerial Economics; Foundations of Business Analysis and Strategy,
10th Edition 2011, Thomas.Maurice, Instructor Manual

Managerial Economics; Foundations of Business Analysis and Strategy,
10th Edition 2011, Thomas.Maurice, Test Bank

Manufacturing Planning and Control for Supply Chain Management, 6th
Edition, Jacobs.Berry.Whybark.Vollmann, Solutions Manual

Manufacturing Processes for Engineering Materials, 5th Edition,
Kalpakjian.Schmid, Solutions Manual

Marketing Management; Knowledge and Skills, 10th Edition 2011,
Peter.Donnelly, Instructor Manual & Solutions Manual

Marketing Management; Knowledge and Skills, 10th Edition 2011,
Peter.Donnelly, Test Bank

Math in Our World, 2nd Edition, Sobecki.Bluman.Matthews, Solutions
Manual

Math in Our World, 2nd Edition, Sobecki.Bluman.Matthews, Test Bank

MCTS Guide to Microsoft Windows 7 (Exam # 70-680), 1st Edition 2011,
Wright, Leon Plesniarski, Instructor Manual & Solutions Manual

MCTS Guide to Microsoft Windows 7 (Exam # 70-680), 1st Edition 2011,
Wright, Leon Plesniarski, Test Bank

Mechanical Vibrations, 5th Edition, Rao, Solutions Manual

Mechanics of Materials; An Integrated Learning System, 2nd Edition,
Philpot, Solutions Manual

Microbiology A Systems Approach, 2nd Edition, Cowan.Talaro, Test Bank

Microeconomics, 10th Edition 2011, Arnold, Instructor Manual

Microeconomics, 10th Edition 2011, Arnold, Test Bank

Microsoft Office 2007, 1st Edition, O'Leary.O'Leary, Instructor Manual
& Solutions Manual

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==============================================================================
TOPIC: Recycling electronic waste.
http://groups.google.com/group/sci.electronics.repair/t/da679f4848b11be7?hl=en
==============================================================================

== 1 of 1 ==
Date: Sat, May 21 2011 1:20 pm
From: "Ian Field"

"Michael A. Terrell" <mike.terrell@earthlink.net> wrote in message
news:_7ydnWbbjM-APUjQnZ2dnUVZ_sGdnZ2d@earthlink.com...
>
> Ian Field wrote:
>>
>> "Michael A. Terrell" <mike.terrell@earthlink.net> wrote in message
>> news:bKWdnfIcsI7U8UjQnZ2dnUVZ_smdnZ2d@earthlink.com...
>> >
>> > Ian Field wrote:
>> >>
>> >> "b" <reverend_rogers@yahoo.com> wrote in message
>> >> news:058eb586-4a80-4d09-a7dc-3d5213dc7010@x3g2000yqj.googlegroups.com...
>> >> On May 17, 10:28 pm, "Ian Field" <gangprobing.al...@ntlworld.com>
>> >> wrote:
>> >> > Taking your e-waste to the council tip doesn't allways mean it will
>> >> > be
>> >> > recycled in a lawful manner!
>> >> >
>> >> > http://www.bbc.co.uk/iplayer/episode/b0116gw0/Panorama_Track_My_Trash/
>> >>
>> >> this video by artist chris jordan has some extremely disturbing points
>> >> on the shameful wastefulness of the so-called developed world:
>> >>
>> >> What I'd like to know is how to make some of the scrap PCs come my
>> >> way.
>> >>
>> >> Firstly I could probably find something better than I've got.
>> >>
>> >> Secondly I could aquire more HDDs to store all the stuff I download.
>> >>
>> >> Thirdly I could make some cash refurbishing and selling any surplus.
>> >
>> >
>> > Tell people you know that you'll take their old computers and wipe
>> > any personal information from the hard drives. Then ask them to tell
>> > others about you. Be careful, or you'll get so many you won't have
>> > room
>> > for them.
>>
>> Most of the people I know want money for their old computer.
>
>
> I know people like that, too, but I know about 25X as many who just
> want them out of their way.
>
>
>> Recently I found a Next brand all in one flat screen jobbie in the bin
>> room,
>> it was all on a single PCB with row upon row of burst electrolytics - but
>> I
>> scored a 250Gb laptop style HDD and a couple of 1Gb PC2 sticks, didn't
>> have
>> anything I could test the Celeron CPU in though.
>
>
> I picked up a working Dell Insperion 531S w/512 MB of RAM and two
> good LCD monitors for free a fewweeks ago. Not only were they given to
> me, but the woman insisted on loading them in my truck for me. So far,
> she's given me about 20 computers and 30 monitors. :)

Scored a hit on freecycle today.

Someone emailed with "a few" computers - some working, some not. Turned out
to be a garage full.

Its times like this not having a car is a PITA, I turned up on the
motorcycle expecting to make a few trips, anyway with a bit of negotiation
he started loading his car - and somewhat more enthusiastically when I
offered to take all he wanted rid of, and not just pick the best bits and
leave him with the rubbish.

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