Paul Weitzel from Tube Research Labs


We lost a great person and audio giant, my condolences and sympathy to him and his family.

Paul's friendship, knowledge and passion for music will most certainly remain with me forever.

128x128rx8man
I just discovered this thread.  I am imressed that many others had the same wonderful experience that I did!  I really miss him too.
i just loved the guy.  had him to the house multiple times; along with Brian.  Now, i own a set of the amps and one of them does not work...and i can't find anyone capable of fixing them .  does anyone know of an operating manual for them?  or someone that can fix them?  I am desperate.  
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.