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Philco 37-690 C134, 134A descrepancy (Discriminator)
#1

Hi to all!
Been lurking for quite awhile reading all the great posts when I finally have a question for the expertsIcon_angel
While recapping C134, 134A I noticed the cap design doesn't match the schematic.
There are three wires from the metal canned cap mounted on top of chassis wired below.
Brown, red and White/ Black stripe wires and common ground to the metal can itself.
Attached is a diagram I made up to more easily see the problem.
   
   
Anyone found this additional cap in their rebuild?
camman
#2

I would tend to replace what is there, a .22 could sub for the two .1 paralleled, and a .1 for the othr one. Use 630 volt types so you do not have to keep so many differrent ones around. The three should easily fit in the old can. Changes, doeumented or otherwise, were often done in production.
#3

(03-19-2012, 02:50 PM)codefox1 Wrote:  I would tend to replace what is there, a .22 could sub for the two .1 paralleled, and a .1 for the othr one. Use 630 volt types so you do not have to keep so many differrent ones around. The three should easily fit in the old can. Changes, doeumented or otherwise, were often done in production.
Thanks codefox1,
This appears to be an early unit with a couple "update" resistors missing.
I think I will keep all existing wires as designed, too.
Yes, I always use 630V caps. Like you said....
no reason not to!
camman





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