Negative Feedback in Valve Amplifiers - Testing - Part two.
16:09
Negative Feedback - In Audio Amplifiers - How to Apply - Part 1.
51:06
Sterns Stereophonic Pre-Amplifier - Fault Finding & Circuit Analysis - Part Two.
21:12
Sterns Stereophonic Pre-Amplifier - Rebuilding & Power Supply - Part Three.
20:10
50w Class A 807 PPP Valve Amplifier Refurb - Part 1
33:22
Sterns Stereophonic Pre-Amplifier - Evaluation - Part 1.
31:17
Vintage Mosfet Amp - Repair - Part Two.
39:42
Vintage Mosfet Repair - 3 Final - Mosfet Testing - Final Tests.
30:02