BMW LED Turn Signals. That’s where these Hornig part number 20103-01 amber “LED Blinklichte” come in. They’re “only” $123.00 the pair. That should keep those cheapskates at bay… This is a printed ...

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.

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 ...