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TR−7930 Tone Mod KE7HR Paul Jorgenson The Kenwood TR-7930 (and TR-7950) had an optional sub-audible tone generator board that selected one of three different possible tones, which was not installed in the used radio I bought. Researching the tone generator, I found a “works alike” replacement for more than twice the price that I got the radio for.
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To Kenwood TR-7930/7950 Mobile REDi Switched 12 VDC BLACK 2 Chassis Ground YELLOW 3 To “TO” on tone unit connector ORANGE 4 **Optional Use (see SS-64 Instruction Sheet) GREY 5 Optional Use (see 55-64 Instruction Sheet) Notes If you want the reverse burst function, follow the directions on the SS-64 instruction sheet to install into your radio’s push-to-talk.
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