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    DYNA ST-70 Harmonic Distortion Testing using all 1960's Heathkit Tube Technology

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    jrubin

    Posts : 52
    Join date : 2015-08-28

    DYNA ST-70 Harmonic Distortion Testing using all 1960's Heathkit Tube Technology

    Post by jrubin on Tue May 15, 2018 9:05 am

    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


      Current date/time is Wed May 23, 2018 9:03 am