You electronic types like Adrian, could probably build this in your sleep.
I am not smart enough to design even these super simple circuits. But I can build them from a plan.....after a few tries.
This isnt on the same level as Adrians e-bays, but, an electronics guy in a hanger around the corner drew this up for me.
The "Shyster" charge me a whole 12 pack, and only let me drink like 3........ or maybe it was 4.
My goal is a 3" e-bay that can slip in and out of more than one 3 inch rocket fairly quickly. That seams to be 50-75% of my flights any way.
There was no way in the past, the way I built them before, this was going to happen. The altimeters were locked in place for the day, maybe the week. The altimeters were to hard to move.
I think he said this thing is good for 3-24 volts and up to 10 amps. What ever those things are. 🙄