Electronics Forum / Repair / April 2007

I need to replace a couple of motorola SRFE1164 transistor in a failed
RF amplifier. There seem to be no trace of a datasheet for this
transistor on the net (motorola is the best for unknown parts afaik).
A search on google revealed that the MRF422 might be an equivalent

I'm having trouble with my old 27" Zenith Sentry 2. It will suddenly
shut off. Often this is accompanied by a low whistling sound.
Sometimes it can be switched right back on, But often it will often
take a number of attempts. Each attempte results in a click and a

I picked up a Philips PM3262 Oscope at my town's recycling center. it
looks like it has been well used.
I plugged it in and turned it on. It worked normally for about 2 minutes
and then shut down. The ckt breaker on it did not pop. The "ON" light

On some JVC DVD recorders there is an adapter plate which adapts the
standard 40 pin IDE connector to a 40 pin FFC Ribbon cable.
Any idea where to source these adapters ?
Many thanks.

On some JVC DVD recorders there is an adapter plate which adapts the
standard 40 pin IDE connector to a 40 pin FFC Ribbon cable.
Any idea where to source these adapters ?
Many thanks.

And can I use it for something?
Laminated steel core:
4 1/2"x 4 1/2"x 4 1/2"
Label on one side says:

This morning, a universal TV remote that is several years old stopped
working.  I thought somone may have accidently removed the code, so I
reprogrammed it, and it seemed to accept certain codes for the TV, yet
not others.  However, it still did not work.  On the other hand, I

I have a Kenwood excelon kdc x589 car radio and cd got stuck in the cd slot
and won't eject out. What do I do? I noticed it was sometimes having
problems ejecting some the cd's completely starting about a month ago and I
had to pull them out with my fingers. This time when the cd ...

Our cable box uses channel 3 with no problem. My dvd player uses
channel 4, big problem. I dont have the remote, however I have tried
to auto scan channel and tried both on air and cable using the menu
button on the front. I still cannot get the tv to change channel to

I have a Toshiba 51 inch RPTV thats 5 years old.  About 3 months ago
it became diffulcult to read my DirectTV channel tags on the top/
bottom of the screen when it was cold (first turned on).  Well it
progressively has gotten worse to the point the whole screen is

I need a fresnal lens for a 3M model 1700 overhead projector. I have
dealt with MB Electronics before and although it is a good company
their prices seem to be retail. This is a very expensive lens, (over
50.00 ). Does anyone know of a 3M parts wholesaler? Thanks. Lenny

snap almost
Cured the main troubles in valve preamp and amp, suspect EL84 and 2 badly
soldered pcb wire links (lead free solder again, note only 2 or 3 years
olkd) . But there is a low level throbbing rumble noise

  Please excuse this OT posting. I have looked for another news
group but couldn't quite find what I need.
  My brother has bought himself a digital video camera that
produces video clips as well as stills and is hoping to take some

I have a four year old box fan that occasionally needs to be
"hand-started" to get going.  It takes a couple of flips, like hand
starting a propeller.
I'd like to disassemble and degrease the fan and motor and re-assemble.

What makes a $1200 vacuum different from a $300 vacuum?  Why would any vac
cost more than an air conditioner?