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Yaesu MD-100 desk microphone 5 volt power for it's preamp with 6400

Member ✭✭
edited December 2019 in FLEX-6000 Signature Series
I see posts about using the Yaesu MD-100 with the 6400 but none address the 5 volts required to power it's equalizer. In the microphone the common for the 5V is the microphone - connection. It is isolated from the "chassis" ground. Question is, if I make 5V from a 3 leg 7805 volt regulator and use the 6400 microphone - lead for ti's common will that harm the 6400? ( As a note the flex 3000 was Yaesu compatible but the microphone - and chassis grounds were tied together from what I can read on the schematic and yes, I know with the 8 band equalizer in the Flex I don't need the amp active in the MD-100 but if I have something I want the option to use it even though I don't need it. )

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Answers

  • Member ✭✭
    edited May 2019
    Life is too short, just use the eq in the radio.
  • Member ✭✭✭
    edited June 2018
    Hello Craig,

    Flex would have to respond to your 5V question as the 1/8" TRS connector on the 6400 can provide 3V according to the Hardware Reference manual...

    image


  • Member ✭✭
    edited July 2018
    Well, my 6400 arrived at 13:30. I made a patch cable from an ethernet cable so I can use my MD-100 with 2 radios, equalizer bypassed. Followed all the instructions from Flex and it is working great. THEN I REALIZED, the flex hand mike is like all Yaesu hand mikes. It has an RJ45 plug that plugs into the bottom of the mike. I could have un plugged the cable from the mic and plugged into my RJ45 switch box! Well, at least I got to use my soldering iron today.


    image
  • Member
    edited December 2019
    Hi. I have an M-100 from Yaesu. is it the same as MD-100 ?. He also asks for 5v.

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