Andy Luckman (AJL Electronics) wrote:

In article , F-Red
wrote:

PS I know there are lots of methods of doing this from ic555 ic4011 or even
two transistor oscillators, but that's not KISS enough for me.


Standard building block bistable circuit will do what you want. Two
transistors, two capacitors and four? resistors.


Hoew about a unijunction with the LED in its collector?