Free Circuit Diagram

This circuit is line powered flasher, can be used in any application, and Christmas lamp is one of the example.  Look at the circuit’s schematic diagram below:

The control for triggering the SCR is done by  Q1, Q2 and related resistors. The timing depends on R1,R2 & C1. To change flashing frequency don’t modify R1 [...]

You can use this circuit to give auto trigger for your secondary flash light. You don’t have to worry about wiring for the control, because using this circuit your secondary flash will be automati8cally triggered when it receive the light signal from the primary flash. Look at the circuit’s schematic diagram below.

The inductor 68mH is [...]