This was the original title given by the publication of the 80s in which we found it. Similar versions can be found on the website under the name of rhythmic light.
The transistors of this amplifier for headphones with 8 to 200-ohm impedance can be BC548 or...
This circuit is from a Radio Electronics magazine from July 1979. It uses the well-known IC 7107, a...
This simple triac trigger switch with low current switch was found in the June 1970 Radio...