I have 3 electronic shutters and need to make controllers this winter.
Sorry, Ian, I haven't.
I have just two Ilex electronic shutters.
A #3 that was part of an oscilloscope camera with an integrated controller. I've never got around to cutting metal, reassembling the controller in a box, adding an inverter plus battery box for field use. Haven't measured the DC voltage the AC power supply puts out, multimeter died and hasn't been replaced yet. Don't really need it, there's an oscillo-Paragon in it (good for little) and I don't have any other cells that will fit the shutter. I've tried the thing out, it functions but runs at least one stop slow at all speeds (4, 2, 1, 1/2, ... , 1/125). I bought it because of the indicated 1/125 top speed, which is unbelievably fast for an Ilex electronic.
And a sort of #00 Ilex electronic (badged OptoDynetics, threaded like a Compur #00 but with shorter tube than the 00 standard) that I've never hooked up to the controller. I have no idea whether the 'scope camera's controller's voltages are right for the little 'un.
Thanks Dan, my electronic skills are rather rusty I've not really done much in the last 40 years I used a real genius when I needed controllers etc for machinery but have lost touch.
There's plenty of quite nice electronic shutters which sell for very little and a lack of cheap off the shelf controllers although I can get half a second and longer controllers of the shelf for under £10/$16 just need to control the voltage.