Paul Weitzel from Tube Research Labs

My heart goes out to his family and yes Paul was a genius and wonderful man. His designs completely changed my audio world. I can no longer settle for good or different as his gear and sound was on an entirely different plane of performance. 

He never accepted the status quo or conventional wisdom and broke the rules we see written in many electronics books. He was a real pioneer with the heart of a pioneer.

He was so generous with his time with me. He spent countless hours teaching and coaching me on how to build electronics, and all over the phone! 

He was also a man who trusted God with his whole heart. Despite his physical ailments,  Paul always received his strength and hope from his Lord and Savior. 

Paul will be greatly missed by many and for a host of beautiful reasons. 

Paul’s gear certainly lived up to the expectations in that quote. This human knows his gear is wonderful sounding without knowing the specs. 

No operating manual is available in terms of a schematic etc... A good tube tech should be able to fix most issues pretty easily. Paul’s design is rather straight forward for the most part. It is also very robust so I think the required fix should be straight forward like replacing a resistor and such. The only possible area of difficulty would be if the issue is in the tube voltage regulation portion of the power supply. His design is tricky to dial in and set up initially. This is not a straight forward portion of the amp and one that can be very tricky.