Very old astatic 525 mike wiring
posted by timspur on Mar 13, 2008
i found a very old astatic mike it says 525 astatic corp.on the back and contact usl on the front it looks like a old noise canceling mike,it has 4 wires ....red,black,bare,and one clear colored wire i was wondering if it was a regular mike or noise-cancelling and how to wire it to fit galaxy dx-44,66..etc.thanks
Best Solution
posted on Mar 13, 2008
WizHello..maybe not a solution..but a hint..measure red-black for 0 ohms while pushing "ptt button" i think it's ptt...bare and transparent is mike...but you can look at original mike and make the same measurement for finding out what is ptt..the two others is mike ...good luck...Ron
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