🚀 go-pugleaf

I want to try some experiments which would require one or more photo flashes
to be fired under control of a digital logic circuit.

As far as I know, the sync contacts of the typical photo flash present a
DC potential anywhere from a few volts to a few hundred volts which when
shorted out by the camera, fires the flash.  There must be a fairly
standard method/device used to accomplish this other than a mechanical
contact.

Before I delve into the databooks to try to figure this out myself, I
thought I'd just ask here.

Tips, hints, schematics, part numbers from Radio Shack or other common
component supplier, would all be appreciated.  I seem to recall a schematic
for a "sound trigger" a while ago but can't find a copy.

Markus Wandel