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Philco 37-610 Mica Cap replacement question
#1

I have a Radiobar which utilizes a Philco 37-610 chassis. Since my intention is to use this daily (the radio not the bar) I've decided to replace all electrolytic and paper caps and all resistors that I can reasonably access.

There is an 11 lug solder terminal strip which I'm in the process of replacing. There are two 110 pF micas (one of which is shunted by a 51K resistor) that would appear "neater" if they were replaced rather than reused.

Can I replace these with 100 pF ceramic which I have or should I order the appropriate 110 pF instead? The caps in question are labeled #30 and #32 in the code 121 schematic for this radio.

If your advise is to use 110 pF caps what type/composition would be best?

Thanks, ED
#2

Hi Ed

Since the caps in question are not in the RF section of the radio, 100 pF ceramic discs will be fine for replacing these.

--
Ron Ramirez
Ferdinand IN
#3

Thanks Ron!
#4

Hi Ron! Made the necessary changes as you suggested and the radio "sings". Thanks

Interestingly, when I first picked up this set it did play. When I pulled the chassis I decided to take some voltage readings and was I surprised to find that most, if not all, voltages were only 50% of normal. Wow...tubes are really forgiving!!

Thanks again, ED




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