Welcome Guest! Be sure you know and follow the Phorum Rules before posting. Thank you and Enjoy! (January 12) x

Thread Closed
Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5

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




Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
Need Help to ID this radio 11 tube Philco
I did R73 RCA. It has a phenolic board with all stuff mounted on it. And the wiring is deep under everything including ...morzh — 10:37 AM
48-482 rear panel help
Hi Keith, here is an article that covers different FM detector circuits including a section on the theory and alignment ...462ron — 08:26 AM
462ron
Well then Dan I guess this old man’s memory wasn’t too foggy :lolno: although I couldn’t remember where I saw that upgra...462ron — 08:08 AM
Need Help to ID this radio 11 tube Philco
Fortunately, I did not have to do much to my GE S-22 (RCA R7A) Almost all caps and the 2 audio transformers packed into...MrFixr55 — 07:44 AM
48-482 rear panel help
Yup Arran is correct it is missing the pushbutton covers. I don't know where they all go but it's a common issue on this...Radioroslyn — 06:48 AM
48-482 rear panel help
I also have one of these, again it never had a back, and no trace of one. I have been told that the pushbuttons used to ...Arran — 03:29 AM
48-482 rear panel help
Thanks Joseph. Hope you get to restore your 48-482 before too long!keithchip — 02:12 AM
Need Help to ID this radio 11 tube Philco
RCAs ain't no cake either.morzh — 10:32 PM
Philco 46-480 Electronic Restoration
After a couple of days worth of troubleshooting my signal generator, I gave up. The oscilloscope still worked fine, so I...jrblasde — 09:51 PM
48-482 rear panel help
Yes, I can confirm. I bought one (haven’t restored it yet) which didn’t have a back panel.jrblasde — 09:37 PM

[-]
Who's Online
There are currently no members online.

>