• 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.

PX4 - based SET amp?

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Years ago a my friend who build a SET for me on the 45 tube gave me a similar amp to trial, this time running a pair of NOS Marconi PX4 tubes....

Long story short, I never heard a better amp before or after driving my Khorns.... stunning. He wouldn't sell it to me as he had other plans for his Marconis. The amp was rewired for 6a3's which were not my thing.

Can anyone guide me to a kit / full build PX4 SET amp? Anyone here built one? I see KR make the PX4 tube now...

Thanks in advance.
 
PX4-ECC34.jpg
 
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