EEVblog #837 - Reverse Engineering A Valve Headphone Amplifier
38:58
EEVblog #675 - How To Reverse Engineer A Rigol DS1054Z
14:20
Headphone Tube Amps - Follow-up & Tear-down
26:34
EEVblog 1664 - REPAIR with Junk Bin Parts! Keithley 2302
28:58
They've never made a better amp than this (Fender Panoverb)
45:52
Your Own Radio Station! The Knight Radio Broadcaster And Amplifier!
19:57
Let’s Build a Low Voltage Vacuum Tube Audio Amplifier
20:52
Guitar Amp Vacuum Tubes Part 1: Triodes and Tetrodes
15:13