VT-231 tube hum

Tubes Asylum

Questions about tubes and gear that glows. FAQ

I installed a pair of Sylvania 6SN7GT/VT-231 tubes in my amp. The tubes were purchased as NOS from a reputable dealer several years ago. One of the tubes instantaneously produced a very loud low frequency hum, which means that it is faulty. I wonder what could be the reason for such failure, if the tube was kept in a drawer for several years. The same thing happened earlier with one of JAN GE 6550 tubes and one of Siemens/RCA 6922 tubes.

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

VH Audio

Topic - VT-231 tube hum - akolegov 11:20:05 01/06/17 (6)

Just out of curiosity - FenderLover 17:42:33 01/06/17 (5)

RE: Just out of curiosity - akolegov 22:36:15 01/06/17 (4)

Dunno about that - FenderLover 00:57:15 01/07/17 (3)

RE: Dunno about that - akolegov 02:24:48 01/07/17 (2)

RE: Dunno about that - Jim McShane 11:35:44 01/07/17 (0)

RE: Dunno about that - sony6060 05:52:59 01/07/17 (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.