WARNING: Tube/Valve amplifiers use potentially LETHAL HIGH VOLTAGES.
Building, troubleshooting and testing of these amplifiers should only be
performed by someone who is thoroughly familiar with
the safety precautions around high voltages.
You would make a simple long-tailed pair with balanced inputs and outputs, using two 6V6-triodes per channel?
Would you need to rig up a CCS for the 'tail' (joined cathodes) to ground (or negative DC supply)?
After reading a little here an there in this tread. I am a bit confused. Can you tell me what is found to be and final the best configuration with 6V6 tubes? is it with the maida reg ?
Just 6dB of shunt NFB (Schade). No worries, cuts some noise & keeps gain in a more useful range. Many may be skeptical but those few who modified the classic common cathode version to the G3X kept it. By "deeper sound" I mean more image depth and better mid-bass.
I have a power transformer with only one 230VAC, will that be enough after filtering and/or regulation, I guess siliciumdiodes are the only way here. How low can the pre amp be power supplied for optimal use?
If you will achieve 300V-330V DC B+ with your transformer, it should be useable. Don't utilize below 300V or it will take some recalculation of bias point.
Good to know, thanks for input Salas and stajo. Yes I can upgrade for another transformer later. Else I might have a transformer I can voltage double to a higher voltage, but that might not be the best solution.
