The Heathkit C-3 Condenser Checker
21:14
The Heathkit IT-17 Tube Checker
1:14:13
Heathkit C-3 Condenser (Capacitor) Checker: History, Restoration, Demonstration, Theory
33:58
Every Component of a Linear Power Supply Explained (while building one)
16:31
Electrolytic Capacitors: Comprehensive Overview, Teardown, and Experiments
13:27
Crystal Radio
8:41
The Heathkit AM-1 Antenna Impedance Meter
14:48
Battery-Powered Magnetron
35:54