Dr. Z AMA: "Tube Rectifiers in Dr. Z Amps"
22:18
How to make your AMP'S TUBES last LONGER! Dr. Z AMA!
11:36
Dr. Z AMA: "Tube Amp Bias"
12:41
WHY I WONT BUY TUBE AMPS AGAIN
14:22
Dr. Z AMA: "Amplifier Quality Assurance"
12:13
Dr. Z AMA: "12ax7 vs. EF86"
26:54
Tube Amp Sag Chapter 4" Solid State vs Tube Rectifiers
40:26
5U4, 5R4, 5V4, 5AR4 & Solid State Rectifier Performance in Vacuum Tube Amplifiers
11:38