Cordless Phone Headset Jack Connections
In article
,
Ryton wrote:
G'Day, can anyone identify the correct connections for this three wire
jack (Example: Is the jack tip for microphone or speaker positive)? TIA
A lot of those provide a source of DC voltage on the "mic" pin,
expecting to power a FET-amplified condenser microphone. Measuring with
a voltmeter could give you a couple of hints.
Isaac
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