Heathkit harmonic distortion analyzer model im-5258

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Subject: Heathkit harmonic distortion analyzer model im-5258
HEATHKIT Harmonic Distortion Analyzer Model IM-5258
This unit is cosmetically in good condition but I have no way of testing it properly.
It turns on and the meter lights work when I bypassed the front rotating switch from inside using an alligator clip! So the switch needs to be replaced! or solder in a jumper wire. The front left corner has some silver overspray from spray paint. See photo. I don’t know much about this unit at all. Sorry I do not have a manual for this analyzer either.


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