The Heathkit IG-18 Sine-Square Audio Generator
11:23
The Heathkit IG-5282 Audio Generator
21:14
The Heathkit IT-17 Tube Checker
1:29:38
Heathkit IG-18 (IG-5218) Sine-Square Audio Generator: History, Overview, Demonstration, Theory
9:56
DERB - Heathkit IG 18 update
17:14
The Heathkit HD-1 Harmonic Distortion Meter
27:41
Heathkit Repair - RF Signal Generator IG-102 PART 3 of 5
19:20
A Look at some New & Old Audio Signal Generators- Vintage Audio Review Episode #7
14:46