• 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.

Kondo KSL-M77 phono preamp clone project

Hello! I finished the kit with the clone case. I’m lucky I didn’t get any hum. However, I do get some white noise that increases as I increase the volume and I have a lot of channel imbalance. I have tried changing the position of the tubes and changing them for some RCA NOS 12AU7s that I happened to have as they are supposed to have less gain, but no luck. They even pick RF which didn’t happen with the 12AY7s. Any suggestion? Thanks in advance
 
For all the matched components, potted inductive devices in fabricated copper pots and silver crap I put into one of the two I bought, my socks need to levitate off of my feet while my shoes are still on when I connect this thing into my mono block ACA’s.
 

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