[R-390] IF deck caps

[Joe Foley]

Nah, he's talking about the yellow plastic ones in the
'67 EAC's, they're good caps, as caps go, just don't
get too close with the soldering iron!

Joe




--- blw <ba.williams@charter.net> wrote:
> 
> > I know the failure rate of Black and Brown
> Beauties, but do the yellow
> > Aerovox jobs suffer a high failure rate too? I ask
> because I just (groan)
> > looked at the nearly 20 of them packed into the
> underside of this Teledyne
> > IF deck that will require replacement if ALL the
> paper caps must be changed
> > out. Some of them are pretty well buried. My other
> 390A, which was gone over
> > prior to my purchase by a fairly well known
> rebuilder, had only C-553 and
> > the BBOD's replaced, all the original yellow
> Aerovox's were left in. Was
> > this a bad move on the restorer's part? That
> particular radio has worked
> > like a champ for 3 years now.
> > Jerry W5KP
> 
> 
> Jerry,
> 
> Are you talking about wax covered paper caps?
> 
> If so, these have to go. They leak badly. These are
> good candidates for
> reforming as you bring a variac up slowly, but you
> will probably find a high
> number of them out of tolerance. These get pinhole
> leaks in the foil
> innards. You reform them by bring up the voltage
> slowly and the holes get
> filled again. But, you can guess the probability of
> failures soon with that
> many of them in there.
> 
> Pull those wax covered paper caps out carefully and
> put them up for sale on
> ebay. Advertise them as excellent dummy caps for the
> *L@@K* crowd who cover
> modern caps with the shells of old ones to make it
> look *ORIGINAL*. Don't
> laugh, a lot of people do this. I was just reading
> an old article about a
> guy who forms his own square molds for the old type
> resistor look.
> 
> 
> Barry
> 
> _______________________________________________
> R-390 mailing list
> R-390@mailman.qth.net
> http://mailman.qth.net/mailman/listinfo/r-390


__________________________________________________
Do you Yahoo!?
Yahoo! Mail Plus - Powerful. Affordable. Sign up now.
http://mailplus.yahoo.com