• The move to the new server is done. There are some software and database maintenance updates in process. This has us passing the hat around to help out. We appreciate any donations. Seriously, even a dollar helps. The payment page may be found here - https://www.audiokarma.org/support.html

hd-1

  1. s-petersen

    Heathkit IM-48(IM12,HD-1) IM-58 (AA-1 IM-22 ) troubles

    Hi Guys and Gals, I have a Heathkit AA-1 audio analyzer and a IM-58 harmonic distortion meter. They both have issues.They didn't work when I bought them. I am working on the IM-58 currently. So far I have found several bad solder joints,and a few incorrect resistors. I have been able to...
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