Lionel non-modular AD-20 Types

gunrunnerjohnOGR Forum Member SUPPORTING MEMBERDIGITAL SUBSCRIBER

I'm trying to document what the various types of the non-modular AD-20 board do. So far I know of the AD-20 Diesel Ditch Light board and the AD-20 IR Drawbar Receiver board. There is also a 3rd mystery AD-20 of which I can't seen to figure out what the function is.

Each of these types has a color dot to identify it's function.

Red: Diesel ditch lights
White: IR Drawbar Receiver
Green: Mystery Function

If anyone knows what the ones with the green dot do, I'm all ears!

13 hours ago

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