feedback/balance control on a Magnavox pp el84

Tube DIY Asylum

Do It Yourself (DIY) paradise for tube and SET project builders.

I am rebuilding a Magnavox console amp the one that is very popular now, and ran across this problem with feedback balance control. This pot is noticeably "sticky" in operation with a definite spot in the center where perhaps the wiper and carbon track have made a ridge. Anyway, I would like to remove this feature/pot and have straight fb into the 6EU7 cathode. The pot has a resistor on the side legs going to each 6eu7 while the center leg is grounded. I tried removing the center leg but that started the amp oscillating. Anyone know of a good fix to remove the pot from the picture? thanx for the help , Dak

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

Kimber Kable

Topic - feedback/balance control on a Magnavox pp el84 - DAK 12:24:04 05/7/14 (6)

RE: feedback/balance control on a Magnavox pp el84 - Tom Bavis 13:34:41 05/7/14 (5)

RE: replacing pot with resistors - DAK 18:47:48 05/8/14 (1)

If you have not done so already... - JJ Triode 22:07:33 05/8/14 (0)

I believe Tom is correct... - JJ Triode 20:23:45 05/7/14 (1)

RE: I believe Tom is correct... - DAK 16:46:53 05/9/14 (0)

RE: feedback/balance control on a Magnavox pp el84 - DAK 18:57:33 05/7/14 (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.