MPC Horns, and Whistles

[krapug1]

Back in the 1970's when MPC first came out with whistles (8206 Steamer),
and horns (mostly in dummy GP-20 units), they required the use of a special
activator botton that rarely worked correctly, and often burned itself out.

I have since had a new sound unit put in my 8206, but I have a group of these dummy GP units that have these horn units in them.

any ideas out there on how to get these horn units to work???

Ken

[ADCX Rob]

For some reason, I never got these to work well w/ our ZW's, but they all work fine in Trainmaster(PM-1 Conventional), & w/ MW. RS-1, CW-80, PowerChief 120, & MRC Tech II O-27 transformers. I think the 2-step whistle control on the original transformers did not quite provide the signal these units wanted to see.

Rob