Vacuum Tube Gain & Gm Calculations & Some Insight Into Transformer Inductance and Impedance
28:22
Vacuum Tube Output Transformer Measurements Determining Turns & Impedance Ratio & Matching To Tubes
44:12
Impedance Ratio: The Easiest Way to Decipher Output Transformers
35:23
Stereo Williamson 7591 Amplifier Repair
26:38
Phase Inverters....for the Common Man
45:01
TTT081 How Tubes Work
34:31
Preamp Gain Stages: the Cathode Resistor. GAIN, TONES & THEORY!!!
19:33
1968 HOW VACUUM TUBES are Made: English Electric Valve Co EEV Television Radio Radar CRT Cameras
52:05