"NSM" wrote in message
news:GNtvd.23284$U47.19879@clgrps12...

"James Sweet" wrote in message
news:lwtvd.3534$Zn6.2565@trnddc08...

| How hard could it be to build a replacement with some off the shelf
relays
| and perhaps a few diodes?

It isn't easy to mechanically interlock relays.

N




Why would you need to though? Just use multipole, double throw relays and
you can wire them together to do just about anything you want. I missed the
exact function of the original device though.