LED Flasher

The electronic lantern control circuit (fig. 1) adds high-efficiency dimming and flashing to an existing
battery-powered lantern or flashlight or to a custom design. For the car it makes a great lamp for
changing a flat tire, back seat reading or emergency engine work. The flasher mode is useful for
warning other drivers of your troubles and it [...]

Here is an unusual flasher circuit for 120VAC loads. The circuit is similar to the two-transistor flasher seen in several circuits in techlib.com except that an SCR is used.
A little circuit trick is hiding in the selection of the 0.1uF capacitor in series with the 1k resistor. When the SCR is off, this capacitor smoothes [...]

Here is a simple circuit for sequentially flashing Christmas light strings or other similar low-power lamps. The socket symbols may be single bulbs or sockets for lamp strings. The load must be capable of operating from DC since the SCRs rectify the line voltage. The SCRs must be sensitive-gate types and must be able to [...]