Name:    Chris H
Email:   Chris.Hills@cadvision.com  
Subject: Noisy 212-HD One Fifty
Thread:  291
Time:    Thu, 29 Nov 2001 03:43:00 UTC

Hi,
Just found your site -- very nice!


I have a fairly old (?) 212-HD One Fifty, which has just developed a very loud hiss. This appears to be from the power amp, and gets louder and softer with the master volume, but is unaffected by any other controls.
Maybe it's just that the 6L6-GC's need to be replaced? They are fairly old!
Do you have any trouble-shooting tips, before I shell out the $$$ for four new tubes? These cost a fortune in Canada, and I'm not sure what to look for -- you have mentioned in earlier messages that "chinese" 6L6's should be avoided for MM's, due to the high voltages used on the HI setting.


Thanks in advance (and for the site!)
Chris H