My personal quest for "contesting" headsets for my Kenwood TS-450S lead me to
the Yamaha CM-500 unit as well. I located a set at the Guitar Center in
Marietta.
When I arrived, the said item could not be located. Eventually, the store
manager produced two CM-500s, but they were w/o box and "papers". He offered
them at half-price so I bought them both.
Only when I got home did I discover that they lacked "the battery box" (I
didn't know to ask for it at the store, mea culpa).
After a conversation with my favorite oracle and guru, Mack W4AX, I bought an
8-pin connector and some 10K resistors at Radio Shack. I wired the mic power
line with the resistor into the connector to tap the 8V pin on the radio mic
input (Thanks Kenwood!). It works well and I have gotten great reports on my
audio. As an aside, I also wired up a 1/4" jack to the connector and bought a
generic sustain piano for an electronic keyboard to use as a foot switch. My
first major effort with this set up will be NAQP SSB. If you hear me, I'd
appreciate signal reports (after the event of course).
Scott, KB4KBS
Postscript: I've discovered a chap in New England who makes my type interface
(but much prettier)and sells them on e-Bay. He can be Googled easily enough.
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