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Philco model 42-380 lost cap connection
gennet2
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#1

06-10-2011, 05:53 AM
Hi Everyone
Hope someone can help me with this problem. I bought this Philco radio 42-380 and upon removing it discoverd that One of the caps was only attached at one end. And even after downloading the schematic I don't understand where it connects on the other side. It is the .0015 cap. one side is connected at tube # 41 post but can't figuire out where other end connects. Looks like it may connect to red coated wire that comes off 5 w voice coil, but I am not sure . I plan on recapping completely. Can anyone tell me where it goes.
I have restored 3 other radios and have always just replaced one at a time so I don't have this problem.
Thank you
Bob
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Ron Ramirez
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#2

06-10-2011, 08:07 AM
Yes - there is a .0015 uF cap (56) connected from the plate of one 41 tube to the plate of the other 41 tube. Pin 2 of each 41 tube socket.
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Ron Ramirez
Ferdinand IN
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codefox1
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#3

06-10-2011, 10:58 AM
Plate to plate capacitor make it a 1000 vdc (or more) type. Someone probably clipped it out when it shorted. It's there to tame oscillations and cancel harmonics above the audible range. A 1 KV ceramic is OK and keep the lead dress as tight as possible.
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gennet2
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Posts: 26
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#4

06-12-2011, 07:37 AM
Thank you for your replies both were very helpful. Sure didn't want to guess where it went.
Thank YOU!
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