We have been asked to add a fourth (solo) manual to a three manual console. Expanding the Syndyne combination action should be straightforward, but the couplers use Devtronix diode switching. I'd love to rip this out and start afresh, but the budget does not allow it. So, in some dusty corner of the shop, might you still have some Devtronix boards lying around? We could certainly use them.

We are particularly interested in the following:
223-10-61N diode switches
223-12-61N magnet-coupler driver boards
223-14-61N five stop motherboard

BTW, what ever happened to Devtronix?