[Saphire]

Originally Posted by Don Hoey

Although there are good deals on old flash units to be had, the electronic circuits in modern cameras will, as John says, be fried by the high trigger voltage of old but useable by remote triggering flashguns.

I have found this listing to show how high some of the trigger voltages can be http://www.botzilla.com/photo/strobeVolts.html

The moral is definately IF IN DOUBT CHECK.

Do not poke around inside these things without knowledge, they contain high voltages

Don

I agree with that Don, don't poke. Many, many, many years ago I did and nearly blew my fingers off. The capacitor is lethal.