Is there a wiring diagram available for the Version 1 Large Scale Climax? 

Thanks

Tim

Don't know if this is the earliest version, but it is not the latest version as near as I can tell?!?!

It is the whole Operator's Manual with exploded views and a rather small wiring diagram near the end, so scroll all the way down to find it!

https://shop.bachmanntrains.com/documents/1-20.3%20Two-Truck%20Climax%20Operators%20Manual.pdf

Thanks!

thats version 1, before the socket... the newer diagram is on the Bachmann site, shows the socket and dummy plug