The HiViz.com WorkShop
Sound Trigger-Delay Unit Package, unassembled
Cords to connect the breadboard circuit to a flash unit or camera are not included.
In order to trigger a flash unit, see this page for flash cable kit options.
When built on a breadboard, the completed circuit will look similar to that shown above. (Click on the photo for a larger view.) The circuit is powered with a 9-V battery or AC/DC adapter (not included).
For descriptions of the sound trigger and delay unit kits, go to these links: