The Tube "Squeal"
19:25
Vacuum Tube Curves in 3D
28:07
Tube Squeal and Hum, 1st Stage Pre-Amp Grounding
20:09
Hum Neutralizer Circuit For Tube Amps
5:18
Mayfly on the Bench: Squealing Dr Z
8:11
Do You Always Need to Bias New Tubes?
5:39
Valve Failure! Spot the Warning Signs | Too Afraid To Ask
23:36
Preamp Gain Stages - The Plate Resistor: Values, gain, tones and theory incl load lines!
34:02