Found in a 1966 General Electric documentation, this circuit controls an incandescent lamp from an audio signal. The circuit works like a rhythmic light.
The circuit shown is from an old publication, from the 70s, but can be assembled with TIC106 SCRs...
This receiver is from an old English magazine from 1965. The transistors used are germanium, no...
This circuit is from Delco Radio found in a 1968’s documentation. The transistors are of the time...