Chinese valve or tube amplifiers - are they any good? Well, I've tried out 2 of them from Hong Kong and the answer in a nutshell is they are absolutely brilliant and easily beat much more expensive transisitor...
A question I hear a lot. Do I need to have my Valve amplifier biased? So What is Bias. Well to put it simply the bias of a Valve amp is set by adjusting the grid voltages to set the idle current of the output...
So you are thinking of buying a valve (or tube) tester and perhaps wondering where to start.The type of tester you want to avoid are utility testers that just check filament continuity – you can do that with a...