А и ещё . Наткнулся только что на статью Рендала Смита.
Diagrammatic image of a 6L6 tubeMESA ENGINEERING
WHITE PAPER
TOPIC: BIAS ADJUSTMENT
September 25, 1996
Here's a question we often hear:
"Why doesn't Mesa put bias adjustments in their amplifiers?"
Well, there's a short answer and a long answer.
The short answer is that during my 12 years of repairing Fenders, one of the most frequent problems I saw was bias controls that were either set wrong or that had wandered out of adjustment due to vibration. As any honest tech will tell you, there's lot's of easy money to be made by sprinkling "holy water" on amplifiers ... uh, what I meant to say is "Your amp needed biasing." See what I mean? What customer is going to argue with that?
It only takes a moment and a volt meter: The Fender diagram shows how: "Adjust this trim pot for - 52 volts." That's it. Nothing more.
Ниче не понимаю. Мне тоже поставить -52вольта или как?
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