Electronics Forum / Repair / September 2007

I remember replacing these quite often many years ago and I still have
a few around here. They are pn. 22-7505, .015uf/1600V. These have four
leads. The two ends read continuity so as we'll probably never again
see the chassis these went into can they be used simply as a .015uf

I was cleaning up the shop and I found a box with the following RCA
parts:
146303, Comm Thyristor
146302, Trace Thyristor

I am trying to locate an NPN transistor #2SD1835. I did an NTE cross
reference and no luck. I have other components I need to order and am
trying to keep from ordering from more than one supplier to avoid
additional shipping charges. I usually order from Mouser who always

My last-ever VCR is a Sony SLV-SE730 and wouldn't you know it, just as
I am about to transfer my last VHS's to DVD, the Nicam starts dropping
out. Otherwise the VCR is in fine condition.
Symptom: most of the time the audio plays as mono, but occasionally

I don't know if it's okay to ask here for help with the repair of a
notebook. Therefore please don't hesitate to tell me the right ng.
The T21 notebook (2647-67G, 20 GB, 512 MB) will sometimes not boot up
after status bar reaches 80% on Win2K boot screen (latest SP). The

I'm not a repairman, but do attempt the easy ones.  I like this receiver,
but suddenly it does weird things.
With power applied, a relay inside is clicking on/off about 4/sec.  The
On-Off PB is not stuck (checked the small sw inside).  Got that far into it.

Have I a problem or is this normal ??
On power up , there is a short period of nothing , followed by the
front panel -center lights short flash- then trigger lamps ligth and
reamin lit , scope then runs normally ... I think this is normal

I know some who frequent this group have moved away from brownwares
(TVs specifically) and I am looking for a bit of advice.
I am getting sick of fighting the TV manufacturers. It doesn't light
my shorts anymore. I am sick of the whole thing.

i baught an old APPLE - MAC PLUS computer . i pluged it to 230 v ac .
nothing happened .
so i opened the cover . i saw the fuse inside it had burst . so i
changed a onw 5 amp fuse . and i powdered it ON . i saw spark of fire

I was given some VHS Compact Videocasettes (from a friends camcorder).
They nolonger have the camcorder and would like me to save the videos to
DVD.
I know you get adaptors that enable you to play this tape in a normal vhs

Hello to all,
it's first the time that I visit this forum;
I have a problem with signal generator them HEWLETT PACKARD HP3310B,
the resistance in series to the BNC of high output(current limitation)

More a question of what is normal with these. ?
Probably an elcap problem, repaired . Its out of the box so the normal
footswitch action is replaced for testing with just a wire touched to
ground.

I have an old (1980's) Sony cassette walkman WM-FX43 that needs a new
drive belt. Does anyone know the exact length of this belt.  I
measured the one I removed and is about 7.5" circumference, but it
looks like it has stretched so I am not sure about the size.  Also, is

I just put together a 686 to transfer dos files from an ailing 486's
hard drives. I was intending to use interlink or laplnk to do this.
For the secons computer I found an old 1 gig (approx) hard drive with
windows 95 on it. I reformated it from a dos 6.2 disk I had and