Name: Tim Armstrong
Email: tarmadilo@yahoo.com
Subject: Spongy sounding 112RD100 fix?
Thread: 139
Time: Sat, 11 Aug 2001 04:40:05 UTC
Yeah, it does. Set too high, the tubes run cold and sound kinda constipated, set too low and they run hot and burn up. They're designed to run at a certain plate voltage, and all tubes aren't the same, so the amp has to be adjusted to provide that level.
Which isn't to say that I haven't just slapped a new set in! If it sounds good, the odds are it's okay. Just make sure the tubes aren't glowing real red!!!
Note: I'm certainly NOT a tech, and the details above may well be somewhat inaccurate. What is true is that if the bias is off, the tubes won't perform well...
Tim