I have dealt with George Meyer and he is very expensive. He does a great job but be willing to shell out the cash. If you want someone just as good at a much better price contact Donny Manigold. He has been a technician for 30 years and he knows tube gear. He has done work on my tube amps for the past 20 years. I have never had a problem with him. (I wish I could say the same thing for my auto mechanic) He was recently at GNP in Pasadena but they closed down. He is currently working from his home. His is about the most honest technician you will ever meet. I have dealt with some other well known L.A technicians and they were total crooks. BTW- I am not referring to George Meyer. They are very honest, just expensive. Donny phone number is 1-626-833-7767. His hours are 10 to 6 Monday to Friday.