Electronics Forum / Electronics / July 2004

I have small heatsink problem where I need to "fill" a small gap with
something heat conductive, I could fill the gap with paste though the gap is
around 1mm and paste might not be a good idea ?  is there anything else
which I could fill the hole with paste wise ?

I was called in to solve an interference problem with a plasma screen.
A vcr is used as the tuner as the screen has no tuner of its own.
The 5 tv channels are o.k. but the problem is with tape playback.
Three lines can be seen on the screen and a buzz is heard through

I have a puzzling problem with a Masuda model K1404 (made by ONWA).
When I turn TV on with power switch, it comes up with a white screen.  I
then have to press the standby (on either TV or remote) to get a
picture.  If I then hit the standby again (which should put TV into

I've notice black stains in the charge contacts in my battery charger appear
from time to time. They are easy to clean off, but I'd like to know why that
happens. Thanks.

I am downloading power electric energy from inonosphere by using a single
antenna sending pulses about 7 Hz aproximely, I am moving motors in
continous operation of severeals HP and I've comproved the power for
download is unlimited, watts, KiloWatts, Mega Watts, GigaWatts, etc, ...

I have a touchscreen that wont display VGA in, one of its pins isnt
connecting and it looks like its the horizontal synch, would I still get any
sort of picture without this? I wouldve though Id get a flat line somewhere
on the screen or would that only apply to a CRT?

I recently purchased a cheap FM transceiver for a project I'm working
on. I'm
Tylerunhappy with the performance on the product and after reading
many reviews of similar products I have doubts that any other like

Can anyone please point me in the direction of a source of fine single core
screened cable. We are repairing / building some existing instrumentation
and are having trouble sourcing some more cable. Around the workshop it is
referred to as phonogram cable, this may or may not be ...

Regulars here may remember I asked a question a while ago about how to
send several control signals down just a pair of conductors.
After looking at several of the suggestions I have concluded that
encoding with DTMF is the most suitable (up to 16 different momentary

My son has bought a Playmaster 300W subwoofer amp which was described in EA
Apr/May 1995. Would anybody have a copy of the original project articles.
The amp is faulty, and as good an electronics engineer I may be, it's always
a challenge to fix things without the circuit diagram ...

Please call me if you wish to discuss batteries. I have two phone lines, so
call both of them if you wish to talk in stereophonic voice.
(724)733-1992 and (724)327-5027
Thank you.

On TV Orion model S21 (which does not start) the power supply
regulator STR-58041 has 329 volts on pin 3. The schematic shows it
should have 280 volts.
Since I haven't been able to solve this start up failure, I am now

I'm considering a project that would involve a floor of tiles that light
up under computer control.  For this I need some sort of solid-state,
wide-area light.  It only needs to be bright enough to see under normal
indoor lighting conditions, and monochromatic is fine, but it ...

Having received the other day a barebones PC with CMOS amnesia and
discovering a marginal backup battery, this occured to me: It is quite easy
for many types of button battery to suffer temporary shorts when being
inserted into battery compartments because of the closeness of the ...

OK, guys... you've all been having so much fun with LED flashlights, now
here's one for ya:
Show me some plans for a floodlight/spotlight (ideally, adjustable
between the two) *USING IR LEDs* that will light up a goodly section of