Name:    Glenn Smith
Email:   smitty@smithga.com  
Subject: tubes,biasing  HELP
Thread:  27
Time:    Wed, 19 Dec 2001 00:07:55 UTC

I'm not saying to do this, I'm just passing on what I did. I got my MM 212-75 a couple of months ago. It had new Groove Tubes (not my preference, but they are new). I checked the specs on the 6L6 tubes and metered out the bias adjustment. Can't find the numbers now, but the amp sounded dead. So I baised to my ear (they are running a bit on the hot side). As a former electronics tech I know that ain't the right way; as a guitarist it was the only way that would work for me.


BTW, pay attention to Steve's warning; those voltages can literally smack you to the promised land. If you don't know what you are doing under the hood, get it to a pro.


Take care,


Glenn