The Heathkit HD-1 Harmonic Distortion Meter
10:31
Understanding Harmonic Distortion Measurements
30:07
HP 339A Distortion Measurement Set Part 1
5:18
¡Haz este increíble dispositivo con solo 6 piezas!
21:28
Tinker with a Heathkit Distortion Meter IM-58 to test a Zenith 5R20 amp.
29:14
Measuring Distortion with a HP 339A and a Keithley 2015 THD
14:16
The Heathkit SG-8 RF Signal Generator
15:58
A Visit to the World's Largest Heathkit Collection
33:32