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The Heathkit IG-18 Sine-Square Audio Generator
Heathkit IG-18 Audio Generator (2018)
Heathkit IG-18 (IG-5218) Sine-Square Audio Generator: History, Overview, Demonstration, Theory
Heathkit IG-5218 Sine Square Wave Audio Generator
Heathkit IG-18 Audio Generator Distortion Tests (Ep. 246)
Heathkit IG-18 Sine-Square Audio Generator Powers Up Vintage
Heathkit IG 18 Signal Generator REBUILD PART 1
The Heathkit IG-5282 Audio Generator
The Heathkit IG-1271 Function Generator
A Look at some New & Old Audio Signal Generators- Vintage Audio Review Episode #7
Heathkit Model IG 18 Short Video
#8 Heathkit SG-18A (IG-18A). Repair and alignment
