Two Types of Tube Amplifier Hum and How to Determine the Source
1:16:33
The Effect of Output Tube Bias on Tone, Gain, and Headroom.....A Side-by-Side Comparison
6:18
Finding and fixing hum
18:57
How Tube Amplifiers Work, Part 1: The Power Supply
18:01
TOUT savoir sur les amplificateurs audio !
5:21
The Worst Filter Capacitors I Have Ever Seen.....and Heard :)
4:59
How To Test Bad Tubes With A Stick
8:06
BUZZZZZZZZ | One Symptom of a Bad Filter Cap
10:31