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Author Topic: Getting the mic to work on a Yamaha CM500 headset  (Read 1405 times)
AE6YB
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« on: January 17, 2012, 08:11:38 PM »

Just got a new Yamaha CM500 headset and I now notice that the mic plug is stereo, where my ProSet mic plug is mono.  The radio is a Kenwood TS-2000. Is that the reason the mic doesn't work on the Yamaha?  Can I get an adapter to make the stereo plug monaural and will that do the trick?  Thanks for any suggestions.  Will, AE6YB
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NA4IT
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« Reply #1 on: January 17, 2012, 08:20:31 PM »

It is an electret mic, requiring a voltage for it to operate. Goolge something like "computer headset TS2000" and you might find some info. Be careful, you can cause the smoke to release on the 5 or 8V regulator if not wired correctly.

See http://www.kingsqueak.org/about/amateur-radio/pc-headset-adapter-for-ham-radio/
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AE6YB
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« Reply #2 on: January 18, 2012, 07:02:31 AM »

NA4IT,  thanks for your reply.  The CM550 comes with a box that takes 2 AAA batteries for the electret mic.  This morning I rounded up an adapter to go from stereo to mono on the 1/8" plug that did the trick.  Thanks very much for your reply and the link.  73, Will
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