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Title: Heathkit DX60 overmodulation prevention mod Post by: K4TLJ on February 04, 2009, 07:50:38 PM Here is schematic of the audio section of a Heathkit DX-60 with the mods I made. No more 'muddy' sound. I also added an over modulation clamp and indicator. Just adjust mike gain while speaking normally until the led just stops flashing. AMfone - Dedicated to Amplitude Modulation on the Amateur Radio Bands
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