This power supply is based on the 723 integrated circuit, which is no longer very common today. The transistor must have a heatsink and the bridge can be formed by diodes 1N4002 or equivalent.
Incandescent lamps of up to a few amps can be placed to flash with this circuit. The frequency depends...
In the figure we have a circuit that fires from a positive pulse of short duration applied to its...
This full wave control with SCRs uses a different solution to avoid using a diode bridge: a pulse...