[Yaesu] FT-100D mike
Dr. Gerald N. Johnson
geraldj at netins.net
Sun Apr 5 00:07:27 EDT 2015
FT100D service manual is available at www.ko4bb.com/manuals. Search on
Yaesu 100. There is also a collection of mods downloaded from mods.dk
some time ago in the yaesu directory and it discusses the FT100 microphone.
The service manual or technical supplement is 32 MB. The collected mods
ia a 5 mb download. Neither of the FT-100 manuals has microphone details.
www.ko4bb.com/manuals/207.32.16.134/38_MH-42.jpg may be the right schematic.
73, Jerry, K0CQ
On 4/4/2015 10:09 PM, Kc3vo--- via Yaesu wrote:
> No, other mikes will NOT work on the FT-100 series radios without modification, because the PTT circuit requires a series RESISTOR, of 22 or 27K ohms, (can't remember which, right now) to operate the transmit function!
> 73, KC3VO-Bob Curry
> Sent from my iPad
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