38-5B

Thread Rating:

0 Vote(s) - 0 Average
1
2
3
4
5

Linear Mode

38-5B

TA Forbes
Deviate Emeritus

Posts: 2,353
Threads: 92
Joined: May 2010
City: Clayton, NC

#10

06-20-2014, 09:34 AM

Often caused by bad filter caps.

Recommend you replace ALL electrolytic and paper caps, and re-stuff the bakelite block caps. Also check resistors and replace those out of spec. Personally, I replace IF more than 10% out.

Make sure your tubes are good. 6F6s have a habit of getting "noisy."

Find

« Next Oldest | Next Newest »

Messages In This Thread

38-5B - by bfrohwein - 06-10-2014, 07:09 PM

RE: 38-5B - by TA Forbes - 06-10-2014, 09:01 PM

RE: 38-5B - by bfrohwein - 06-10-2014, 09:09 PM

RE: 38-5B - by bfrohwein - 06-11-2014, 10:35 AM

RE: 38-5B - by TA Forbes - 06-11-2014, 11:18 AM

RE: 38-5B - by bfrohwein - 06-12-2014, 01:34 PM

RE: 38-5B - by Ron Ramirez - 06-12-2014, 02:17 PM

RE: 38-5B - by bfrohwein - 06-12-2014, 03:19 PM

RE: 38-5B - by bfrohwein - 06-18-2014, 08:21 PM

RE: 38-5B - by TA Forbes - 06-20-2014, 09:34 AM

RE: 38-5B - by bfrohwein - 06-20-2014, 02:29 PM

RE: 38-5B - by TA Forbes - 06-20-2014, 10:08 PM

RE: 38-5B - by bfrohwein - 06-20-2014, 10:53 PM

RE: 38-5B - by TA Forbes - 06-22-2014, 12:00 PM

RE: 38-5B - by bfrohwein - 06-22-2014, 08:04 PM

RE: 38-5B - by TA Forbes - 06-24-2014, 09:43 AM

RE: 38-5B - by Ron Ramirez - 06-24-2014, 09:48 AM

RE: 38-5B - by TA Forbes - 06-24-2014, 09:50 AM

RE: 38-5B - by Ron Ramirez - 06-24-2014, 09:50 AM

RE: 38-5B - by TA Forbes - 06-24-2014, 10:05 AM

RE: 38-5B - by bfrohwein - 06-24-2014, 11:34 AM

RE: 38-5B - by Ron Ramirez - 06-24-2014, 11:39 AM

RE: 38-5B - by TA Forbes - 06-30-2014, 09:15 AM

RE: 38-5B - by bfrohwein - 06-30-2014, 10:52 AM

RE: 38-5B - by TA Forbes - 07-01-2014, 01:14 PM

RE: 38-5B - by morzh - 07-01-2014, 01:17 PM

RE: 38-5B - by bfrohwein - 07-01-2014, 01:27 PM

RE: 38-5B - by morzh - 07-01-2014, 01:30 PM

View a Printable Version

Users browsing this thread: 2 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.

Login
Username:
Password:	Lost Password?
	Remember me