Willsenton R8: Must do Modification to Bias Boards!
22:19
Willsenton R8: Fixing Lead Dress and Grounding Faults.
26:47
Willsenton R8: Fixing Lead Dress and Grounding Faults #2.
25:35
Willsenton R8: Push Pull Global Negative Feedback Tuning.
20:38
Tube Lab #142 - Willsenton R8 Bias Pot Replacement +
1:01:34
Tektronix 547 Valve Oscilloscope Repair - Part One
46:21
The 5 kilowatt Crown
22:48
Willsenton R8: Mod of the Voltage Regulator 6SN7 tube
29:04