Kenwood mic

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WB8JBG
Posts: 70
Joined: Fri Dec 01, 2006 11:34 pm

Kenwood mic

Post by WB8JBG »

I have a Kenwood MC50 mic that I would like to re-wire for use on my TS680S. Can it be done? or is there an adaptor that I can purchase for it. I don't care wether the up/down function works. I never use it. TNX. WB8JBG :?:
WA9WVX
Posts: 103
Joined: Tue Aug 09, 2005 2:31 am
Location: QRZ Indicates Northern Illinois

Kenwood MC-50 Desktop Microphone

Post by WA9WVX »

Hello Ed,

Well the Kenwood MC-50 Desktop Microphone is a High "Z" Impedance (50K) and the Kenwood TS-680S Transceiver Microphone Input is a Low "Z" Impedance (600 Ohm). This is a major audio Impedance mismatch!

Not to fret because I've got a solution by clicking on the web link below:

http://www.kenselectronics.com/lists/audxmfr.html

CR45-715 audio xmfr 3/4x5/8x5/8" insulated wire 50K to 500 ohm $8.85

Wire the High "Z" Kenwood Microphone element to the High "Z" Primary windings (50K) and the Secondary windings to the Low "Z" (500 Ohm) output / radio microphone input. You could probably install the Audio Matching Transformer into the base of the microphone stand ultimately hiding it from view and preventing any wires from being broken off. This should solve the Audio Impedence "Z" Mismatch. You'll be required to purchase an Eight pin plug to match up with the TS-680S Transceiver Microphone Input. These 8-Pin Plugs should be readily available at Radio Shack, Amateur Electronic Supply , any other Amateur Radio supply store or On-line.

73,

Dan
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