Testing 807 Beam Tetrode Valves/Tubes - Part 1.
41:06
Scratch Build a Stereo Tube Amplifier Part 1
25:20
Replacing Coupling Capacitors in Vintage Gear
17:07
7 kg Hammer machine repairing
21:22
Biasing Double-Ended Amplifier Output Tubes, Part 2: Demonstration and Discussion
21:55
Valve Amp Delayed Start- Fault Finding & Wotnot.
21:06
Fault finding & fixing a valve amp.
14:30
Heathkit Model WA-1, 20 Watt, 807 Vacuum Tube Amplifier Tests
8:03