sci.electronics.repair - 26 new messages in 8 topics - digest

sci.electronics.repair
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Today's topics:

==============================================================================
TOPIC: DATING ROMANCE -DATING CHAT ROOMS -FREE ONLINE DATING -JOIN NOW
http://groups.google.com/group/sci.electronics.repair/t/e2039a6d99ca163d?hl=en
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== 1 of 1 ==
Date: Sat, Apr 16 2011 11:09 pm
From: devi vithya

http://datinggirls9.blogspot.com/

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TOPIC: Uniselector mini project.
http://groups.google.com/group/sci.electronics.repair/t/b7082851ed958781?hl=en
==============================================================================

== 1 of 1 ==
Date: Sun, Apr 17 2011 1:07 am
From: T i m

On Sat, 16 Apr 2011 17:21:19 -0700 (PDT), KR <kenreed1999@gmail.com>
wrote:

>> I would like to use a uniselector (got) to step to its next position
>> upon connection to a mains supply (through 'X' circuitry). This will
>> probably be at one_per_day time intervals.
>>
>> Ideally said circuitry would consume as little energy itself as
>> possible.
>>
>
>Use a DC supply to run it, and (say) 2200uf electrolytic in series.

Would you make summat (transformer, bridge rec, cap) or just get a
wall wart sorta thing?

>This will hold it in for a couple of seconds upon power up. If it is
>not long enough, use a larger value cap.

Understood. My original thought (to keep the residual current down)
was to just half_wave_rectify the mains and use that with the cap idea
as once up to potential there shouldn't be much in the way of current
(if both charger and this circuit were powered from the same mains
timer etc). It's just the coil could initially have more than 50V
across it (zener?) and I'm not sure how it would cope with un smoothed
half wave rectified current? How much current do transformers draw
when there is little load?

>It would be a good idea to
>put a diode across the coil, with the K (stripe) to the positive to
>prevent back EMF from the coil possibly damaging the capacitor over
>time.

Understood.
>
>Note that this will pulse the coil once every time you turn on the
>power, it will not pulse again until the power is turned off and on
>again.

Yup, exactly what's needed. As long as the cct can reset quickly (so
that would be down to a 'bleed' resistor across the cap presumably)
then the timer could just provide a 1 min off time. If not I guess 15+
mins (as per the mechanical timers) may be required
>
>I have used this method in the past with relays to provide a power on
>delay

That's another thought, slugging the start up of the charger to after
the selector has stepped. It would be quite easy to (safely / easily)
cover that with two cheap digital 24hr time switches [1] but a single
solution would be 'cleaner'.

> and it has worked well for over 10 years.

Yup and KISS often means at least I actually getroundto doing it. ;-)

Cheers, T i m

[1] Charger timer turns off.
<short delay>
Stepper timer turns off.
<delay to bleed cap>
Stepper timer turns on.
Charger timer turns on.
<~24hr delay>
GOTO [1]

==============================================================================
TOPIC: minidisc player shows track but won't play tracks
http://groups.google.com/group/sci.electronics.repair/t/305742f0844c5c34?hl=en
==============================================================================

== 1 of 11 ==
Date: Sun, Apr 17 2011 4:58 am
From: "N_Cook"

Meat Plow <mhywattt@yahoo.com> wrote in message
news:pan.2011.04.16.19.33.57@lmao.lol...
> On Sat, 16 Apr 2011 12:23:19 -0700, a7yvm109gf5d1 wrote:
>
> > On Apr 16, 12:10 pm, willywainwright <w...@mac.com> wrote:
> >> hello, I have a number of sony minidisc players that suddenly won't
> >> play the track for no apparent reason. I've tried batteries and plug in
> >> power with no difference. Powers up fine, shows spinning icon in
> >> window, track number shows but I can't get the units to play the disc.
> >> I've tried it in all positions, even upside down and sideways but still
> >> no playing of disc
> >> any ideas?
> >> willy
> >
> > 1) Try lens cleaner disc.
> > 2) Now toss the whole shebang in the garbage 3) Get a free cell phone,
> > even they'll come with a MP3 player.
> >
> > Minidisc is over. It's dead, finished, kaput. And I'm speaking as
> > someone who bought a MZ-1 when they first came out.
>
>
> I own a Sharp S60 and a Sony NetMD. Both record wonderfully with a stereo
> condenser mic, the Sony will load songs from a PC in about 4 minutes.
> Also has an FM tuner. Minidisc isn't dead for me. I also own 32 gig Ipod
> Touch. I use all three frequently.
>
>
>
> --
> Live Fast Die Young, Leave A Pretty Corpse

I use a Sharp MD R60 once a month recording and transcribing public talks
and more
testingly Q&A from the audience in acoustically about the worst possible
environment.
Rarely do I miss a word if I do it is some obscure technical term. Two basic
electret mikes on fine multistrand cable and rubber
sleeving plugged directly into the recorder and acoustically decoubled body
by use of a "Benny" between it and the table.
I'm always amazed by the clarity of sound.

Cafe scientific talks www.divdev.fsnet.co.uk/scicaf.htm
past talks, www.divdev.fsnet.co.uk/scicaf2.htm

== 2 of 11 ==
Date: Sun, Apr 17 2011 12:51 pm
From: Meat Plow

On Sun, 17 Apr 2011 02:21:07 +0100, Arfa Daily wrote:

> "Meat Plow" <mhywattt@yahoo.com> wrote in message
> news:pan.2011.04.16.19.33.57@lmao.lol...
>> On Sat, 16 Apr 2011 12:23:19 -0700, a7yvm109gf5d1 wrote:
>>
>>> On Apr 16, 12:10 pm, willywainwright <w...@mac.com> wrote:
>>>> hello, I have a number of sony minidisc players that suddenly won't
>>>> play the track for no apparent reason. I've tried batteries and plug
>>>> in power with no difference. Powers up fine, shows spinning icon in
>>>> window, track number shows but I can't get the units to play the
>>>> disc. I've tried it in all positions, even upside down and sideways
>>>> but still no playing of disc
>>>> any ideas?
>>>> willy
>>>
>>> 1) Try lens cleaner disc.
>>> 2) Now toss the whole shebang in the garbage 3) Get a free cell phone,
>>> even they'll come with a MP3 player.
>>>
>>> Minidisc is over. It's dead, finished, kaput. And I'm speaking as
>>> someone who bought a MZ-1 when they first came out.
>>
>>
>> I own a Sharp S60 and a Sony NetMD. Both record wonderfully with a
>> stereo condenser mic, the Sony will load songs from a PC in about 4
>> minutes. Also has an FM tuner. Minidisc isn't dead for me. I also own
>> 32 gig Ipod Touch. I use all three frequently.
>>
>>
>>
> Which reminds me. Presumably you got on ok dismantling the Touch a few
> weeks ago ?
>
> Arfa

It was a video IPod a relative gave me before I bought the Touch. Those
had a common problem and they had a name for it "ink spot". The backlight
is a couple leds on the bottoms of a plastic diffuser that spreads the
light out evenly behind the LCD. I'm guessing it was dropped
because the former owner won't admit to it. It came apart nicely once I
looked up where the latches were, a thin pocket knife blade did nicely.
You can buy the replacement cheap enough along with the plastic
disassembly tool. I decided to buy the Touch instead of repairing the
video IPod and reassembled it. It works fine audio wise and the display
issue is only a nuisance not interfering at all with selecting songs and
other menu items.

--
Live Fast Die Young, Leave A Pretty Corpse

== 3 of 11 ==
Date: Sun, Apr 17 2011 1:13 pm
From: Meat Plow

On Sun, 17 Apr 2011 12:58:24 +0100, N_Cook wrote:

> Meat Plow <mhywattt@yahoo.com> wrote in message
> news:pan.2011.04.16.19.33.57@lmao.lol...
>> On Sat, 16 Apr 2011 12:23:19 -0700, a7yvm109gf5d1 wrote:
>>
>> > On Apr 16, 12:10 pm, willywainwright <w...@mac.com> wrote:
>> >> hello, I have a number of sony minidisc players that suddenly won't
>> >> play the track for no apparent reason. I've tried batteries and plug
>> >> in power with no difference. Powers up fine, shows spinning icon in
>> >> window, track number shows but I can't get the units to play the
>> >> disc. I've tried it in all positions, even upside down and sideways
>> >> but still no playing of disc
>> >> any ideas?
>> >> willy
>> >
>> > 1) Try lens cleaner disc.
>> > 2) Now toss the whole shebang in the garbage 3) Get a free cell
>> > phone, even they'll come with a MP3 player.
>> >
>> > Minidisc is over. It's dead, finished, kaput. And I'm speaking as
>> > someone who bought a MZ-1 when they first came out.
>>
>>
>> I own a Sharp S60 and a Sony NetMD. Both record wonderfully with a
>> stereo condenser mic, the Sony will load songs from a PC in about 4
>> minutes. Also has an FM tuner. Minidisc isn't dead for me. I also own
>> 32 gig Ipod Touch. I use all three frequently.
>>
>>
>>
>> --
>> Live Fast Die Young, Leave A Pretty Corpse
>
>
> I use a Sharp MD R60 once a month recording and transcribing public
> talks and more
> testingly Q&A from the audience in acoustically about the worst possible
> environment.
> Rarely do I miss a word if I do it is some obscure technical term. Two
> basic electret mikes on fine multistrand cable and rubber sleeving
> plugged directly into the recorder and acoustically decoubled body by
> use of a "Benny" between it and the table. I'm always amazed by the
> clarity of sound.

The feature on the MD-SR60 I like the most is the sync mode for
recording. This allows the SR60 to start and stop recording automatically
by sensing audio. It's very useful for surveillance or recording from
my police and public service scanner. No dead spaces in between activity.
I used it a couple weeks ago to record the local airport air traffic
control inbound traffic frequency and caught an inbound flight having
difficulty verifying the locked position of it's nose gear. One thing it
lack though is the extended modes of the Sony as it use a couple extra
MDLP modes to increase record/playback times the Sharp can't handle.
The modes are fairly useless for music but for voice recording they are
more than sufficient. This is the MZ-NF610 Type-s Net Med TV/Weather/FM/
AM model. Advantages over the Sharp is it can load discs at several times
normal speed using a USB cable. It also has some good playback EQ modes
for better bass and treble. And the wired remote has an LCD screen on it.
I use it to listen to Sirius radio throughout the house when I'm doing
chores. I recently added an indoor Sirius receiver because sometimes in
bad weather the signal from my Sirius radio in the SUV is interrupted.
That's understandable since the signal has to pass through a garage roof
to get to the receiver.

--
Live Fast Die Young, Leave A Pretty Corpse

== 4 of 11 ==
Date: Sun, Apr 17 2011 2:47 pm
From: willywainwright

On Apr 16, 10:30 am, "N_Cook" <dive...@tcp.co.uk> wrote:
> willywainwright <w...@mac.com> wrote in message
>
> news:e6dab674-d751-49d8-b0c6-30237220af6b@j9g2000prj.googlegroups.com...
>
> > hello, I have a number of sony minidisc players that suddenly won't
> > play the track for no apparent reason. I've tried batteries and plug
> > in power with no difference. Powers up fine, shows spinning icon in
> > window, track number shows but I can't get the units to play the disc.
> > I've tried it in all positions, even upside down and sideways but
> > still no playing of disc
> > any ideas?
> > willy
>
> How many different players?
> Laid the discs near a powerful louspeaker?
> Tried on someone elses player ?

I have three players that won't play any disc. I also have two others
that work fine. didn't do anything to the players that won't play,
that I know of. haven't dropped them or anything. Can't figure out
why they all of a sudden won't play and if there's anything I can do
about it.
willy

== 5 of 11 ==
Date: Sun, Apr 17 2011 2:49 pm
From: willywainwright

On Apr 16, 11:30 am, Meat Plow <mhywa...@yahoo.com> wrote:
> On Sat, 16 Apr 2011 10:10:06 -0700, willywainwright wrote:
> > hello, I have a number of sony minidisc players that suddenly won't play
> > the track for no apparent reason. I've tried batteries and plug in power
> > with no difference. Powers up fine, shows spinning icon in window, track
> > number shows but I can't get the units to play the disc. I've tried it
> > in all positions, even upside down and sideways but still no playing of
> > disc
> > any ideas?
> > willy
>
> So let me see if I understand you. You have multiple players that won't
> play one track on one disc? Or you have one disc that won't play any
> tracks on multiple players? Or you have multiple discs that won't play on
> multiple players? Which is it?
>
> --
> Live Fast Die Young, Leave A Pretty Corpse

I have disc's that play fine on two of my players but no disc's at all
will play on these three.
in other words, it's not the discs it seems to be the players. can't
figure out if there's anything I can do.

== 6 of 11 ==
Date: Sun, Apr 17 2011 2:52 pm
From: willywainwright

On Apr 16, 12:23 pm, a7yvm109gf...@netzero.com wrote:
> On Apr 16, 12:10 pm, willywainwright <w...@mac.com> wrote:
>
> > hello, I have a number of sony minidisc players that suddenly won't
> > play the track for no apparent reason. I've tried batteries and plug
> > in power with no difference. Powers up fine, shows spinning icon in
> > window, track number shows but I can't get the units to play the disc.
> > I've tried it in all positions, even upside down and sideways but
> > still no playing of disc
> > any ideas?
> > willy
>
> 1) Try lens cleaner disc.
> 2) Now toss the whole shebang in the garbage
> 3) Get a free cell phone, even they'll come with a MP3 player.
>
> Minidisc is over. It's dead, finished, kaput. And I'm speaking as
> someone who bought a MZ-1 when they first came out.

maybe a lens cleaner disc would work. wonder if I can find one. I'll
give it a try. Garbage is full of my cassette tapes and players and
all my 8-track tapes. Willy

== 7 of 11 ==
Date: Sun, Apr 17 2011 2:53 pm
From: Meat Plow

On Sun, 17 Apr 2011 14:49:12 -0700, willywainwright wrote:

> On Apr 16, 11:30 am, Meat Plow <mhywa...@yahoo.com> wrote:
>> On Sat, 16 Apr 2011 10:10:06 -0700, willywainwright wrote:
>> > hello, I have a number of sony minidisc players that suddenly won't
>> > play the track for no apparent reason. I've tried batteries and plug
>> > in power with no difference. Powers up fine, shows spinning icon in
>> > window, track number shows but I can't get the units to play the
>> > disc. I've tried it in all positions, even upside down and sideways
>> > but still no playing of disc
>> > any ideas?
>> > willy
>>
>> So let me see if I understand you. You have multiple players that won't
>> play one track on one disc? Or you have one disc that won't play any
>> tracks on multiple players? Or you have multiple discs that won't play
>> on multiple players? Which is it?
>>
>> --
>> Live Fast Die Young, Leave A Pretty Corpse
>
> I have disc's that play fine on two of my players but no disc's at all
> will play on these three.
> in other words, it's not the discs it seems to be the players. can't
> figure out if there's anything I can do.

I doubt if it's coincidence. Maybe a bad disc damaged the three. Do the
'bad' players read the TOC? Can you try to add names to the tracks to see
if that gets written to the TOC? Something just doesn't add up.

--
Live Fast Die Young, Leave A Pretty Corpse

== 8 of 11 ==
Date: Sun, Apr 17 2011 3:34 pm
From: Sjouke Burry

willywainwright wrote:
> On Apr 16, 11:30 am, Meat Plow <mhywa...@yahoo.com> wrote:
>> On Sat, 16 Apr 2011 10:10:06 -0700, willywainwright wrote:
>>> hello, I have a number of sony minidisc players that suddenly won't play
>>> the track for no apparent reason. I've tried batteries and plug in power
>>> with no difference. Powers up fine, shows spinning icon in window, track
>>> number shows but I can't get the units to play the disc. I've tried it
>>> in all positions, even upside down and sideways but still no playing of
>>> disc
>>> any ideas?
>>> willy
>> So let me see if I understand you. You have multiple players that won't
>> play one track on one disc? Or you have one disc that won't play any
>> tracks on multiple players? Or you have multiple discs that won't play on
>> multiple players? Which is it?
>>
>> --
>> Live Fast Die Young, Leave A Pretty Corpse
>
> I have disc's that play fine on two of my players but no disc's at all
> will play on these three.
> in other words, it's not the discs it seems to be the players. can't
> figure out if there's anything I can do.

Try one with an external powersource.

== 9 of 11 ==
Date: Sun, Apr 17 2011 5:38 pm
From: "Arfa Daily"

"willywainwright" <ww10@mac.com> wrote in message
news:25afe1d0-f5ec-423f-ae7c-a22b29f43c59@q40g2000prh.googlegroups.com...
> On Apr 16, 12:23 pm, a7yvm109gf...@netzero.com wrote:
>> On Apr 16, 12:10 pm, willywainwright <w...@mac.com> wrote:
>>
>> > hello, I have a number of sony minidisc players that suddenly won't
>> > play the track for no apparent reason. I've tried batteries and plug
>> > in power with no difference. Powers up fine, shows spinning icon in
>> > window, track number shows but I can't get the units to play the disc.
>> > I've tried it in all positions, even upside down and sideways but
>> > still no playing of disc
>> > any ideas?
>> > willy
>>
>> 1) Try lens cleaner disc.
>> 2) Now toss the whole shebang in the garbage
>> 3) Get a free cell phone, even they'll come with a MP3 player.
>>
>> Minidisc is over. It's dead, finished, kaput. And I'm speaking as
>> someone who bought a MZ-1 when they first came out.
>
> maybe a lens cleaner disc would work. wonder if I can find one. I'll
> give it a try. Garbage is full of my cassette tapes and players and
> all my 8-track tapes. Willy

Never ever use 'cleaner' discs - not that I recall ever seeing one for a
mindisc anyway. They invariably never do anything to help, and in the case
of DVDs, I've seen them cause expensive damage where the little 'brush'
hairs embedded in the disc, have caught in the lens suspension, and mangled
it as the disc has then rotated. I used to do a lot of work on Sony MD
players, when a guy that I did work for was a regional service centre. For
the most part, failure to play discs is down to a worn out laser. Sometimes,
you can get around that for a while, by resetting the laser parameters via
built in diagnostic software, but it is a complex and tricky procedure to
do. Another thing to check is that when the disc is loaded, it is free to
rotate. I had many examples where the turntable had been pushed down on the
motor shaft, until it jammed the motor. Another very common problem was
'crap in the works'. The sled drive comprises gears with *very* fine teeth.
The slightest bit of contamination in them, is enough to stop the gears from
turning. The contamination in question, often seemed to be very fine sand,
but I guess that it could have been 'pocket grit'. Just one grain in one of
the gear teeth, will jam the mech and stop the laser from homing, which will
result in the disc failing to spin up, and the TOC not being read. Finally,
I suppose you do actually see the display come up and hear the disc loading
as though it's about to do everything normally ? I have had cases where the
door-closed sense switch has caused problems. A word of warning though. You
need to have the patience of a saint to work on these things, and some very
fine tools, including a quality set of Philips jeweler's screwdrivers, and
pointed tweezers. Magnetize the screwdriver first. The tiny little screws
are no bigger than an ant, and easily lost. Work on a large sheet of paper,
and use a strong light, and a magnifying glass. And you need to be able to
hold your breath pretty well, also ... d :-|

Arfa

== 10 of 11 ==
Date: Mon, Apr 18 2011 12:32 am
From: "N_Cook"

Arfa Daily <arfa.daily@ntlworld.com> wrote in message
news:pKLqp.27744$oP6.27372@newsfe19.ams2...
>
>
> "willywainwright" <ww10@mac.com> wrote in message
> news:25afe1d0-f5ec-423f-ae7c-a22b29f43c59@q40g2000prh.googlegroups.com...
> > On Apr 16, 12:23 pm, a7yvm109gf...@netzero.com wrote:
> >> On Apr 16, 12:10 pm, willywainwright <w...@mac.com> wrote:
> >>
> >> > hello, I have a number of sony minidisc players that suddenly won't
> >> > play the track for no apparent reason. I've tried batteries and plug
> >> > in power with no difference. Powers up fine, shows spinning icon in
> >> > window, track number shows but I can't get the units to play the
disc.
> >> > I've tried it in all positions, even upside down and sideways but
> >> > still no playing of disc
> >> > any ideas?
> >> > willy
> >>
> >> 1) Try lens cleaner disc.
> >> 2) Now toss the whole shebang in the garbage
> >> 3) Get a free cell phone, even they'll come with a MP3 player.
> >>
> >> Minidisc is over. It's dead, finished, kaput. And I'm speaking as
> >> someone who bought a MZ-1 when they first came out.
> >
> > maybe a lens cleaner disc would work. wonder if I can find one. I'll
> > give it a try. Garbage is full of my cassette tapes and players and
> > all my 8-track tapes. Willy
>
> Never ever use 'cleaner' discs - not that I recall ever seeing one for a
> mindisc anyway. They invariably never do anything to help, and in the case
> of DVDs, I've seen them cause expensive damage where the little 'brush'
> hairs embedded in the disc, have caught in the lens suspension, and
mangled
> it as the disc has then rotated. I used to do a lot of work on Sony MD
> players, when a guy that I did work for was a regional service centre. For
> the most part, failure to play discs is down to a worn out laser.
Sometimes,
> you can get around that for a while, by resetting the laser parameters via
> built in diagnostic software, but it is a complex and tricky procedure to
> do. Another thing to check is that when the disc is loaded, it is free to
> rotate. I had many examples where the turntable had been pushed down on
the
> motor shaft, until it jammed the motor. Another very common problem was
> 'crap in the works'. The sled drive comprises gears with *very* fine
teeth.
> The slightest bit of contamination in them, is enough to stop the gears
from
> turning. The contamination in question, often seemed to be very fine sand,
> but I guess that it could have been 'pocket grit'. Just one grain in one
of
> the gear teeth, will jam the mech and stop the laser from homing, which
will
> result in the disc failing to spin up, and the TOC not being read.
Finally,
> I suppose you do actually see the display come up and hear the disc
loading
> as though it's about to do everything normally ? I have had cases where
the
> door-closed sense switch has caused problems. A word of warning though.
You
> need to have the patience of a saint to work on these things, and some
very
> fine tools, including a quality set of Philips jeweler's screwdrivers, and
> pointed tweezers. Magnetize the screwdriver first. The tiny little screws
> are no bigger than an ant, and easily lost. Work on a large sheet of
paper,
> and use a strong light, and a magnifying glass. And you need to be able to
> hold your breath pretty well, also ... d :-|
>
> Arfa
>

For the last I use felt laid in a 2 inch high sided tray. Felt stops
bouncing and rolling to a certain extent and walls trap any that have idea
of escaping.

== 11 of 11 ==
Date: Mon, Apr 18 2011 12:35 am
From: "N_Cook"

willywainwright <ww10@mac.com> wrote in message
news:05ea6fa5-ff08-496e-bd5b-ad1ca7433279@o21g2000prh.googlegroups.com...
On Apr 16, 10:30 am, "N_Cook" <dive...@tcp.co.uk> wrote:
> willywainwright <w...@mac.com> wrote in message
>
> news:e6dab674-d751-49d8-b0c6-30237220af6b@j9g2000prj.googlegroups.com...
>
> > hello, I have a number of sony minidisc players that suddenly won't
> > play the track for no apparent reason. I've tried batteries and plug
> > in power with no difference. Powers up fine, shows spinning icon in
> > window, track number shows but I can't get the units to play the disc.
> > I've tried it in all positions, even upside down and sideways but
> > still no playing of disc
> > any ideas?
> > willy
>
> How many different players?
> Laid the discs near a powerful louspeaker?
> Tried on someone elses player ?

+++++++

Have you been using system or diagnostic discs on the non-workers?

==============================================================================
TOPIC: Yamaha StagePas300
http://groups.google.com/group/sci.electronics.repair/t/737699f29c180409?hl=en
==============================================================================

== 1 of 1 ==
Date: Sun, Apr 17 2011 5:48 am
From: Stefan Huebner

> I don't quite understand how such designs ever make it to production.

Because its Yamaha? On some EMX I've disassembled to trace down an
immediate shut down problem I've been searching for 30 mins for a ground
connection between PSU/ PA/speaker ground to the mixer circuit ground.
Finally found it: one single M3 screw between the speakons connects the
power ground to the back plate, the backplate itself is connected to the
sheet metal shielding when assembled correctly and this is then
connected to mixer and preamp ground.
When the screw or the shielding comes loose, the PAs offset will grow
and shut down.

==============================================================================
TOPIC: Would you stop for a moment?!
http://groups.google.com/group/sci.electronics.repair/t/579e72d06bf9acbe?hl=en
==============================================================================

== 1 of 6 ==
Date: Sun, Apr 17 2011 10:17 am
From: "mr.jak"

Excuse me!!
Would you stop for a moment?!
O...man...Haven't you thought-one day- about yourself ?
Who has made it?
Have you seen a design which hasn't a designer ?!
Have you seen a wonderful,delicate work without a worker ?!
It's you and the whole universe!..
Who has made them all ?!!
You know who ?.. It's "ALLAH",prise be to him.
Just think for a moment.
How are you going to be after death ?!
Can you believe that this exact system of the universe and all of
these great creation will end in in nothing...just after death!
Have you thought, for a second, How to save your soul from Allah's
punishment?!
Haven't you thought about what is the right religion?!
Read ... and think deeply before you answer..
It is religion of Islam.
It is the religion that Mohammad-peace upon him- the last prophet, had
been sent by.
It is the religion that the right Bible- which is not distorted-has
preached.
Just have a look at The Bible of (Bernaba).
Don't be emstional.
Be rational and judge..
Just look..listen...compare..and then judge and say your word.
We advise you visiting :

http://www.islam-guide.com

http://www.islamhouse.com/s/9661

== 2 of 6 ==
Date: Sun, Apr 17 2011 11:11 am
From: PeterD

On 4/17/2011 1:17 PM, mr.jak wrote:
>
>
>
> Excuse me!!

No, we're not interested in anything from the religion of hate,
oppression and violence.

--
I'm never going to grow up.

== 3 of 6 ==
Date: Sun, Apr 17 2011 1:41 pm
From: David Nebenzahl

On 4/17/2011 11:11 AM PeterD spake thus:

> On 4/17/2011 1:17 PM, mr.jak wrote:
>
>> Excuse me!!
>
> No, we're not interested in anything from the religion of hate,
> oppression and violence.

So, you're referring to Christianity, right? or maybe Judaism?

--
The current state of literacy in our advanced civilization:

yo
wassup
nuttin
wan2 hang
k
where
here
k
l8tr
by

- from Usenet (what's *that*?)

== 4 of 6 ==
Date: Sun, Apr 17 2011 4:25 pm
From: PeterD

On 4/17/2011 4:41 PM, David Nebenzahl wrote:
> On 4/17/2011 11:11 AM PeterD spake thus:
>
>> On 4/17/2011 1:17 PM, mr.jak wrote:
>>
>>> Excuse me!!
>>
>> No, we're not interested in anything from the religion of hate,
>> oppression and violence.
>
> So, you're referring to Christianity, right? or maybe Judaism?
>
>

Buddhism...

--
I'm never going to grow up.

== 5 of 6 ==
Date: Sun, Apr 17 2011 5:03 pm
From: David Nebenzahl

On 4/17/2011 4:25 PM PeterD spake thus:

> On 4/17/2011 4:41 PM, David Nebenzahl wrote:
>
>> On 4/17/2011 11:11 AM PeterD spake thus:
>>
>>> On 4/17/2011 1:17 PM, mr.jak wrote:
>>>
>>>> Excuse me!!
>>>
>>> No, we're not interested in anything from the religion of hate,
>>> oppression and violence.
>>
>> So, you're referring to Christianity, right? or maybe Judaism?
>
> Buddhism...

Don't forget Santeria. And Zoroastrianism, Baha'i, Jainism,
Rastafarianism, LDS, Hinduism, Sikhism, Est, ...

And to think: all of these consider themselves to be the One True Path ...

--
The current state of literacy in our advanced civilization:

yo
wassup
nuttin
wan2 hang
k
where
here
k
l8tr
by

- from Usenet (what's *that*?)

== 6 of 6 ==
Date: Sun, Apr 17 2011 6:11 pm
From: spamtrap1888

On Apr 17, 10:17 am, "mr.jak" <mr.jak...@hotmail.com> wrote:

> Haven't you thought about what is the right religion?!
> Read ... and think deeply before you answer..
> It is religion of Islam.
> It is the religion that Mohammad-peace upon him- the last prophet, had
> been sent by.
> It is the religion that the right Bible- which is not distorted-has
> preached.

No.

The first act Jesus performed in His public life was to turn water
into wine, so that members of a wedding party could continue to enjoy
themselves. (John, Chapter 2). Yet Mohammed wrote that wine comes from
Satan. (Sura 5, Verse 92) Any religion that equates Jesus with Satan
is not the right religion.

==============================================================================
TOPIC: Request transistor cross reference
http://groups.google.com/group/sci.electronics.repair/t/6d311b79499b89d6?hl=en
==============================================================================

== 1 of 4 ==
Date: Sun, Apr 17 2011 2:50 pm
From: jjb_at_northstate_dot_net@foo.com (kaplanB)

kaplanB had written this in response to
http://www.electrondepot.com/repair/Request-transistor-cross-reference-47287-.htm
:

jascott99@gmail.com wrote:

-------------------------------------
Jeff,
Did you ever find a supplier or cross reference for T30G40?

I'm on the hunt as well

Thanks,
..Kap

##-----------------------------------------------##
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== 2 of 4 ==
Date: Sun, Apr 17 2011 3:31 pm
From: "Barry"

"kaplanB" <jjb_at_northstate_dot_net@foo.com> wrote in message
news:43551$4dab60c1$43de0cc0$22746@news.flashnewsgroups.com...
> Jeff,
> Did you ever find a supplier or cross reference for T30G40?
>
> I'm on the hunt as well
>
> Thanks,
> ..Kap

Have you ever thought about entering T30G40 into a Google search?

Google quickly found: 800V Vcbo, 30A Ic Low frequency power silicon
NPN transistor Operational temperature range from 0°C to 150°C.

V(BR)CEO (V)=400
V(BR)CBO (V)=800
I(C) Abs.(A) Collector Current=30
Absolute Max. Power Diss. (W)=200
h(FE) Min. Static Current Gain=80
f(T) Min. (Hz) Transition Freq=7.0M
t(d) Max. (s) Delay time.=3.0u
t(s) Max. (s) Storage time.=3.0u
t(f) Max. (s) Fall time.=1.0u
Package=SIP
Military=N

As much as I hate gmail and GoogleGroups, Google itself is quite handy!

73, Dr. Barry L. Ornitz WA4VZQ

== 3 of 4 ==
Date: Sun, Apr 17 2011 5:14 pm
From: David Nebenzahl

On 4/17/2011 3:31 PM Barry spake thus:

> "kaplanB" <jjb_at_northstate_dot_net@foo.com> wrote in message
> news:43551$4dab60c1$43de0cc0$22746@news.flashnewsgroups.com...
>
>> Jeff, Did you ever find a supplier or cross reference for T30G40?
>>
>> I'm on the hunt as well
>
> Have you ever thought about entering T30G40 into a Google search?
>
> Google quickly found: 800V Vcbo, 30A Ic Low frequency power silicon
> NPN transistor Operational temperature range from 0�C to 150�C.
>
> V(BR)CEO (V)=400
> V(BR)CBO (V)=800
> I(C) Abs.(A) Collector Current=30
> Absolute Max. Power Diss. (W)=200
> h(FE) Min. Static Current Gain=80
> f(T) Min. (Hz) Transition Freq=7.0M
> t(d) Max. (s) Delay time.=3.0u
> t(s) Max. (s) Storage time.=3.0u
> t(f) Max. (s) Fall time.=1.0u
> Package=SIP
> Military=N
>
> As much as I hate gmail and GoogleGroups, Google itself is quite handy!

With all due respect, since often people don't make even the minimal
effort to find something by "Googling" (gawd, how I hate that that's now
a verb!), you didn't find what was being asked for here. Which was a
cross-reference or substitution guide for this device, not a definition
of its parameters.

I find this is true with a lot of semiconductors and other things out
there: it's fairly easy to find datasheets and technical details such as
you put up there, but often difficult or impossible to come up with a
simple answer to "what other devices can I substitute for this one,
since there's no way in hell I'll ever be able to obtain one of these?".

(Of course, you can always find another device that matches these
parameters, but that's not a trivial exercise, unless one has some handy
references available. One *might* be able to do this using DigiKey's
parameter-matching item search, but I couldn't say for sure, not having
looked up transistors using it.)

--
The current state of literacy in our advanced civilization:

yo
wassup
nuttin
wan2 hang
k
where
here
k
l8tr
by

- from Usenet (what's *that*?)

== 4 of 4 ==
Date: Sun, Apr 17 2011 6:04 pm
From: "Barry"

"David Nebenzahl" <nobody@but.us.chickens> wrote in message
news:4dab8216$0$27391$822641b3@news.adtechcomputers.com...
> On 4/17/2011 3:31 PM Barry spake thus:
>
>> "kaplanB" <jjb_at_northstate_dot_net@foo.com> wrote in message
>> news:43551$4dab60c1$43de0cc0$22746@news.flashnewsgroups.com...
>>
>>> Jeff, Did you ever find a supplier or cross reference for T30G40?
>>>
>>> I'm on the hunt as well
>>
>> Have you ever thought about entering T30G40 into a Google search?
>>
>> Google quickly found: 800V Vcbo, 30A Ic Low frequency power silicon
>> NPN transistor Operational temperature range from 0°C to 150°C.
>>
>> V(BR)CEO (V)=400
>> V(BR)CBO (V)=800
>> I(C) Abs.(A) Collector Current=30
>> Absolute Max. Power Diss. (W)=200
>> h(FE) Min. Static Current Gain=80
>> f(T) Min. (Hz) Transition Freq=7.0M
>> t(d) Max. (s) Delay time.=3.0u
>> t(s) Max. (s) Storage time.=3.0u
>> t(f) Max. (s) Fall time.=1.0u
>> Package=SIP
>> Military=N
>>
>> As much as I hate gmail and GoogleGroups, Google itself is quite
>> handy!
>
> With all due respect, since often people don't make even the minimal
> effort to find something by "Googling" (gawd, how I hate that that's
> now a verb!), you didn't find what was being asked for here. Which was
> a cross-reference or substitution guide for this device, not a
> definition of its parameters.
>
> I find this is true with a lot of semiconductors and other things out
> there: it's fairly easy to find datasheets and technical details such
> as you put up there, but often difficult or impossible to come up with
> a simple answer to "what other devices can I substitute for this one,
> since there's no way in hell I'll ever be able to obtain one of
> these?".
>
> (Of course, you can always find another device that matches these
> parameters, but that's not a trivial exercise, unless one has some
> handy references available. One *might* be able to do this using
> DigiKey's parameter-matching item search, but I couldn't say for sure,
> not having looked up transistors using it.)
>
>
> --
> The current state of literacy in our advanced civilization:
>
> yo
> wassup
> nuttin
> wan2 hang
> k
> where
> here
> k
> l8tr
> by
>
> - from Usenet (what's *that*?)
>

To someone who understands these specs, and knows which ones are critical
to the application, this is all that is needed. To someone who wants to
buy a NTE "drop-in" part, I suggest you go to one of the Asian parts
suppliers who advertise that they can get the original part.

I found a part rated at 1000 BVces, 450 BVceo, 30 amps, and 250 watts.
It has a f(sub)T of 10 MHz and a Vce(sat) of 2 volts at 20 amps.
Now YOU tell me if this will work or not... Both Mouser and Digi-Key
found this part.

Barry WA4VZQ

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

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TOPIC: Ampeg BA600 - 115 bass amp combo, 6 months old, ROHS
http://groups.google.com/group/sci.electronics.repair/t/bc6178fc14fcf982?hl=en
==============================================================================

== 1 of 1 ==
Date: Mon, Apr 18 2011 12:37 am
From: "N_Cook"

I removed the filter cap to measure the inductance of L1 . Cap marked 1uF,
250V.
This L1 weighs about 170 gm, estimating weight of remainder components and
pcb from total of 290 gm.
Through a hole I can see some wire about 1mm diameter.
Using 1KHz RLC meter, L1 measures -2.2H on H scales and -140mH on mH scales,
don't know what that means , will try and find a manual for an Avo B183.
Maybe faulty, but measuring plain inductors through the scales is positive
and consistent across neighbouring scales.
1KHz ac resistance is 230R, DC resistance is 4K so perhaps what is labelled
as L1 is R and L in series.
Perhaps R of 4K and L of .6H , to give 230R at 1KHz, but if wholly 1mm wire
I cannot see how 600mH with 170gm of 1mm wire, strange core material?

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