There's nothing to post. Basically took an encoding pyro device that is no longer made. It had a manual switchbox
to set the code. There are no keylocks. The receivers "learned" the code and I would scramble the four recessed microswitch switchbox code (like you see on switchboxes on altimeters)
between my launches. With the power on or off, if the protected code switches aren't set, no signal is sent.
Unfortunately, it is no longer made.
The receivers simply closed a relay but they could only switch up to 10 amps. I sent that current to a low energy
relay solenoid that switched the car battery. Oh there was the potential to switch 12 receivers hence 12 rockets
You can look at the current batch of Ebay pyro stuff but I don't see anything I like. What I have certainly wouldn't be legal for club usage but I've seen a small group use a similar system for years without issue. Nice thing is
no long wires. I'm sorry you're on your own for this one.
Some of the current batch of pyro lighters might be hackable for "safe" rocketry use but I'm happy with my
12 year old system and baby my transmitter. Kurt