Re: OT electronics: headset microphones

dave wrote:
Just received an inexpensive headset but can't get any output signal
from the mic. What puzzles me is that the mic. has a stereo mini jack
plug on it when the mic. is just a mono device. Are the two signal
lines just tied together?

I know that XLR mics have a balanced input so the three pins are + -
and gnd. Very unlikely that a cheapo headset has such a set up
(could be wrong of course). I have a 'scope and can see *no* signal
from either pin of the mic jack socket to it's ground. So looks like
a duff mic.

Ever come across the pro-audio term "phantom power"?

Following site explains all!

<http://www.epanorama.net/circuits/microphone_powering.html>


--
Adrian C
.

Relevant Pages

  • Re: Orbitsonic 200; Microphone Wiring Question
    ... The microphone plug on the front is a 5-pin DIN-type connection. ... I see Radio Shack ... make 5 pin din plug mics - and not always compatible wiring. ... use a VOM - one lead to the chassis of the set - and ohm out the mic pins. ...
    (sci.electronics.repair)
  • Re: SM57 with gold XLR ?
    ... There's no reason why Shure couldn't have switched to gold plated ... pins, particularly in a version of a mic that gets packaged in a kit. ... drum mics and instead buys a packaged kit is likely to be impressed by ...
    (rec.audio.pro)
Loading