A short coaxial jumper may then be installed from the board to the connector. Now, here is the official Condor Connection IC-37 modification sheet. To eliminate the distortion in the transmit audio, install a 4.7k ohm resistor inside the microphone case, in series with the white lead coming from microphone element. To improve the receiver sensitivity, power output, SWR at the radio, and reliability, remove the RG-58 pigtail and the UHF connector extending from the rear of the radio. The new connector will screw in as if the modification was done at the factory.
Thermal compound is recommended.
Hook the input of the 7808 to the point where R67 and R68 used to connect. Hook the output of the 7808, in series with a 1N4001 diode, to J14-1. The cathode of the diode goes to the connector goes to the connector, and the anode goes to the 7808.