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Mocat 40 Pinout

jtm1816

Member
Joined
Nov 2, 2022
Messages
61
Location
Martinez, GA
Just ordered a TMN6007A microphone that i am going to convert to work with a Mocat 40
Does anyone happen to have a pinout diagram for the Mocat 40 microphone port?
 

RFI-EMI-GUY

Member
Joined
Dec 22, 2013
Messages
7,378
Just ordered a TMN6007A microphone that i am going to convert to work with a Mocat 40
Does anyone happen to have a pinout diagram for the Mocat 40 microphone port?
I am assuming that the TMN6007A is a standard Motorola electret mike with built in preamp *. Those required a bias voltage on the mic hot line to power them. The MOCAT likely had a dynamic, magnetic cartridge like most CB radios. You may want to consider that you will have to add a bias voltage of about 6- 8 volts through a 600 ohm or more, resistor to power the TMN.

* Older mikes used a carbon microphone like an old telephone and the Electret/preamp replicates that in newer style.

This seller has nicely provided a drawing of the requirements:

 
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