[AMRadio] Re: GB> WOW !! NOS Black Beauties, I can hardly wait

[John Coleman, ARS WA5BXO]

When I was servicing TVs, it was standard procedure to get rid of those
and replace with orange drops.  If there was one used as a boost filter
you can bet it was shorted and the cause of no HV.  I replaced more of
those black beauties than any other cap including the wax covered paper.
But the ones I liked the most were the ones that were either mylar or
paper wound and stuffed instead a white ceramic tube (Elemco brand, I
think) and epoxy on the ends.  Drilled them out and used the ceramic
tube as a coil form.

John,
WA5BXO

-----Original Message-----
From: amradio-admin at mailman.qth.net
[mailto:amradio-admin at mailman.qth.net] On Behalf Of Donald Chester
Sent: Tuesday, November 18, 2003 7:16 PM
To: amradio at mailman.qth.net
Subject: Re: [AMRadio] Re: GB> WOW !! NOS Black Beauties, I can hardly
wait


Back in the 50's when I was still in high school, there was a local TV
shop 
that threw many of their irreparable TV chassis, mostly ones taken on 
trade-in, out into a dump pile.  They would let us pick through the
stuff 
and we could usually have anything we wanted.  I got many power
transformers 
and tubes that way.  I could have collected zillions of black beauties
with 
the colour bands, since that seemed to be the most common type of caps
in 
old TV sets of that era. (20-20 hindsight!).

Most of the time I discarded the black beauties in particular because
they 
often had cracks in the plastic with oil dripping out, and they seemed
to me 
to crap out more often than the old fashioned wax impregnated cardboard 
tubular types.  Of  course we are talking about caps that had seen
thousands 
of hours of service before the TV finally gave up the ghost, and then
used 
in ham applications that no doubt exceeded their intended specs.

Don K4KYV

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