RE: FM-3 hum is back and question about impedances.

Radio Road

Which tuner to get and getting the most from it. Thank God, for the radio!

In Reply to: FM-3 hum is back and question about impedances. posted by ltman on March 9, 2024 at 08:20:43:

jumping in mid thread the 40/40/20/20 sounds like a tube equipment?.
If you want a quick fix, get two modern 40 or 50mf electrolytic caps with the same Voltage rating and solder these right onto the lugs of the existing cap and ground (watch polarity!). Use some heat shrink if needed but "back then" neat wiring was normally "enough insulation".

Oh the issue is the old electrolytic caps tended to dry out and the MFD goes down and the die-electric liquid goes away.

This post is made possible by the generous support of people like you and our sponsors:

VH Audio

Follow Ups Full Thread

Topic - FM-3 hum is back and question about impedances. - ltman 08:20:43 03/09/24 (6)

RE: FM-3 hum is back and question about impedances. - 6bq5 16:19:34 07/16/24 (0)

RE: FM-3 hum is back and question about impedances. - tomservo 17:51:56 05/18/24 (1)

RE: FM-3 hum is back and question about impedances. - ltman 21:16:44 07/11/24 (0)

RE: FM-3 hum is back and question about impedances. - ltman 08:13:42 04/24/24 (0)

I have the FM3.... - Cougar 07:45:41 04/24/24 (1)

RE: I have the FM3.... - ltman 10:21:14 07/12/24 (0)

Follow Ups

RE: FM-3 hum is back and question about impedances. - tomservo 17:51:56 05/18/24 (1)

RE: FM-3 hum is back and question about impedances. - ltman 21:16:44 07/11/24 (0)

FAQ

Post a Message!

Forgot Password?

Moniker (Username):
Password (Optional):
	Remember my Moniker & Password (What's this?) Eat Me
E-Mail (Optional):
Subject:

Message:	(Posts are subject to Content Rules)

Optional Link URL:
Optional Link Title:
Optional Image URL:
Upload Image:
E-mail Replies:	Automagically notify you when someone responds.

To view your new posting or follow-up, click on the RELOAD or REFRESH button on your browser.