This is somewhat of a novelty, however in this video I will demonstrate harmonic distortion testing of my Dynaco ST 70 amplifier using all Heathkit tube gear from the 50's and 60's. This demonstration will show the THD produced from this amplifier at 2KHZ using three different power inputs.
The equipment used includes:
Heathkit IG-72 Audio Generator
Dynakit ST70 Power Amplifier
Heathkit IM-12 Harmonic Distortion Meter
Heathkit O-12 Oscilloscope
The entire process is shown in the video over several iterations, some have been shortened
The equipment used includes:
Heathkit IG-72 Audio Generator
Dynakit ST70 Power Amplifier
Heathkit IM-12 Harmonic Distortion Meter
Heathkit O-12 Oscilloscope
The entire process is shown in the video over several iterations, some have been shortened