Reply to "Random TMCC Technical Questions"

PaperTRWOGR Forum Member SUPPORTING MEMBER

John,

Thanks for taking the time to reply.

I was able to get the answer for the switch question on the AD20 board.

It was a very early RailSounds/SignalSounds switch, when the changeover was made to the modular board system in the late 1990's. The only confirmed use I can find is on the 6-18064 New York Central Mohawk of 1998. That locomotive had a lift-off tender coal load to access everything inside, and apparently the designers at the time thought a switch on the top of a board was better than one underneath the frame.

One more mystery solved!

Regards,

TRW

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