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.
I like to have your simple schematic....here I have two el34. I like to build SE amp...I have two 6AT7 Gammatron tubes...can you share me your expirience here?