Last train season I picked up an orphan tender with a sos/whistle sound board. I'd like to identify the board and tender if possible.
The tender is 6026 style (Santa Fe) with the speaker mounted to the underside of the deck. It is lettered for "C & O" in gold lettering. Plastic trucks and the rear couple is non-operating.
The sound board has five wires: two to the speakers, one to the chuff trigger, and a pair of wires for a roller pickup and ground (outside rails). I have speaker wires and trigger wire positively identified. If someone can identify which wire is to the pickup and which wire goes to the axle wipers, I would appreciate it.
Some of the numbers are hard to read, I think the back of the board is marked: 518501023 rev. 1
A photo is below.
So: when was the board used?
Which wires to center rail pickup and axle wiper (ground).
What engine did the tender go with?
Thanks in advance for any help.