tube amplifier auto bias- accurate?


Hi I am new to tubes and this hobby, I read somewhere autobiasing is a gimmick, I was wondering how accurate it is. Is it possible it could be inaccurate? Is there a way to test its accuracy. Also what tube tester is good for beginner.
samuellaudio

Showing 1 response by s23chang

I wonder if Macs were the first ones to implement autobias successful in their vintage gears like the MC240s.