This is a small size led flasher built with the 555 timer IC that is powered from 2 x 1.5V batteries. The circuit can be used as a flashing metronome, dark room timer, memo-reminder or other similar ...

The flasher circuits below operate on a single 1.5 volt battery. LED flasher circuit diagrams. The circuit on the upper uses the popular LM3909 LED flasher IC and requires only a timing capacitor and ...

I remember making a flasher with a LM3909 back in the late 1970s. It was very efficient. In regards to this circuit, I can think of one that is even simpler, although not so stable.

Picking the right turn signal flasher for LEDs. Features. Events. How-To ... which is not enough to heat the internal strip and open the circuit. ... not all of them are for LED applications.

He discovered parasitic circuit formed by the neon switch backlight lamp (equivalent of the current source in here) and by the LED rectifier capacitor. LED’s switching converter starting point acts as ...