• 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.

Changed R2R Transistor to Tube Head.

Dear folk, my tech friend told me to change open reel head from transistor to tube head. He said I will be STUNNED! so I did and stunning for an hours. I am not sure what?
Audio Thanong Tube Amp-4-1.jpg
 
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