1. The PHILCO Phorum
  2. Philco Radio Discussions
  3. Philco Electronic Restoration
Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5

Linear Mode
37-670 capacitor questions
exray
Phorum Expert
*****
Posts: 893
Threads: 9
Joined: Mar 2008
City: Vieques, PR USA State, Province, Country: PR
#11

01-27-2014, 06:28 AM
On the 110pf caps they used a high voltage rating as a means of minimizing leakage. No need to do that with modern caps.

And yes, the caps on the audio output plates need to consider both the DC present plus any audio spikes. Best to go with 1000 or more.
Website Find
« Next Oldest | Next Newest »


Messages In This Thread
37-670 capacitor questions - by Tom Hamilton - 01-23-2014, 10:15 PM
RE: 37-670 capacitor questions - by hsusmann - 01-23-2014, 10:26 PM
RE: 37-670 capacitor questions - by morzh - 01-23-2014, 10:27 PM
RE: 37-670 capacitor questions - by Tom Hamilton - 01-23-2014, 11:08 PM
RE: 37-670 capacitor questions - by morzh - 01-24-2014, 12:36 AM
RE: 37-670 capacitor questions - by Tom Hamilton - 01-24-2014, 05:31 PM
RE: 37-670 capacitor questions - by OldRestorer - 01-25-2014, 07:57 AM
RE: 37-670 capacitor questions - by Tom Hamilton - 01-25-2014, 01:09 PM
RE: 37-670 capacitor questions - by Warren - 01-25-2014, 03:11 PM
RE: 37-670 capacitor questions - by Raleigh - 01-27-2014, 12:38 AM
RE: 37-670 capacitor questions - by exray - 01-27-2014, 06:28 AM
RE: 37-670 capacitor questions - by Tom Hamilton - 01-27-2014, 12:44 PM



Users browsing this thread: 3 Guest(s)
[-]
Recent Posts
Philco 16B Parts
The 16B's in the tombstone cabinet sport a 10 1/2" spkr vs the older cathedral sets which uses an 8". The p/p ...Radioroslyn — 12:58 AM
Philco 38-7 Oscillation
I have let this one sit because of other duties. Now I am back, and I have a couple of questions. I hooked up a Hammond ...tludka — 11:16 PM
Philco 38-7 Speaker
I know that when I first started working on this radio, I did not even have a speaker. Once I finally found one it was n...tludka — 11:00 PM
Philco 60 Squealing
I seem to remember eliminating a squeal by changing the IF frequency by a few KHz. Not that you should put too much tru...fenbach — 08:48 PM
Philco 42-390, code 121 speaker
These speakers pop up on eBay regularly, even if at bloated prices. Honestly, have not seen many parts on swapmeets.morzh — 08:38 PM
Philco 38-7 Speaker
The put-put is not like the speaker problem.morzh — 08:29 PM
Mission Bell Model 19A Car Radio
Hello everyone,  As mentioned in my last post I was going to see if the vibrator / rectifier section could be persuaded...Antipodal — 08:21 PM
Philco 60 Squealing
Wondering if I did it backwards. If a coil was wound backwards, the oscillator would not work at all. Old school...Chas — 07:23 PM
Philco 38-7 Speaker
4-ohm speaker. Black, Green leads.tludka — 07:00 PM
Philco 42-390, code 121 speaker
#87 on the schematic.  This radio had a 8" Zenith  speaker attached to it when I got it. I do don't know the hist...Stevelog — 06:39 PM

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

>
  1. The PHILCO Phorum
  2. Philco Radio Discussions
  3. Philco Electronic Restoration