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Old March 6th 04, 04:41 AM
Mike Knudsen
 
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Default Wiring Standard for 1/4" Mic Plugs?

Is there an agreed-on way to wire a PTT mike to a "stereo" 3-conductor 1/4"
phone plug/jack? Based on past experience (KWM-2, NCX-3), I'd say it is:

Sleeve (ground) -- common to mic audio and PTT switch
Tip (end) -- PTT switch, close switch to trip TX relay and transmit
Ring (middle of shaft) -- mic audio hot

However, I found a nice Shure PTT mike that's got the common ground to Ring,
mic audio to Sleeve, and PTT to Tip. Should I rewire this beast, or is this
really the "standard"? Hard to imagine audio hot going to Sleeve, but who
knows?

Hope to reach a conscnsus before I repair the wires on my D-104, one of which
has broekn off. Thnx es 73, Mike K.

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