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.
This circuit, found in a 1958 magazine, is for reference only, since the components are not easy...
Found in Popular Electronics this circuit triggers an SCR and lights an LED when the location of...
This OF-1 LO oscillator was found in a 1980s American documentation. The transistor can be any...