We have a winner, Tiny is correct. I’ve gutted out a couple of RF transmitters and will be installed them in the custom Keycoder. You can just make out one of the boards in the last photo. I’ll be joining them together to only have one antenna and battery setup.
Momentary – (on)-off-(on). I didn’t want to spend an arm or a leg on the switches so picked up some cheap SPDT. If I could have gotten some sub-mini in (on)-off for under a buck that would have been my ideal solution. I also tried momentary buttons but didn’t like them so much.
Technically I could get away with 12 switches and double each up to operate two channels, or have 4 RF boards for 48 channels
But I could see myself getting confused and flipping up when I should be doing down. On some like the volume control I may still do that but probably not for all.
The Vantec keykoder is (on)-off-on, so each channel can be locked, but that’s not really an option in this case with the RF remotes, not on the switch side anyway – latching is done on the receiver.
I also have a version of the box with just 12 holes/switches. When I start wiring it up I’ll decide then if I’ll stick with 12 or 24 switches.