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.

rx8man02-01-2016 10:43pm

willliamaswope Details Discussions Posts This discussion Message User 1 posts 03-18-2020 at 10:50pm Copy Comment URL Report Comment Edit Delete 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.
dgarretson Details Discussions Posts This discussion Message User 2,597 posts 03-18-2020 at 11:05pm Copy Comment URL Report Comment Edit Delete Contact Bob Backert of Backert Audio or Bill Thalmann of Music Technology.
grannyring Details Discussions Posts This discussion Message User 6,471 posts 03-19-2020 at 01:00am Copy Comment URL Report Comment Edit Delete 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.