Bob, There's a ground lug and small pin on the preamp. I put a female pin on the wire for the 12 volt connection and soldered on the ground. I have 2 of those and they work great. Even run them from a HT battery when operating portable, maybe 9.6 volts or so, works fine.

73 John K6YK

On Mon, 31 Mar 2008 11:04:00 -0400 w0dxz@aol.com writes:

I am thinking aobut ordering an ARR pre amp for 432,,, I see the pin for 12V DC,,, what type of connector does this take, or do you have to solder the? wire to the pin? That seems a bit crude. Canby one use the ARR product, and how do you connect the 12V to it? Bob W0DXZ