The Last 6 RF Transistors were removed from the RF Circuit Board by Cutting the PC-Board apart with a Hack Saw at location shown in the Picture.
Then we picked up the 15 Watts of RF from the Driver to the RF output with a small piece of RG-174 Coax.
I have Several VHF Repeaters running with this RF-PA mod and all have had No problems running Continuous Duty.
DC-Amps used for the Repeater Transmit is less than 4 Amps. Making it Ideal for Solar Power Repeaters or small DC Power supplies like the Astron RS-12!
You can also remove the Power Adjust Circuit board from the radio. You will run the remaining RF section at Max Output = 15 Watts.