Found in a 1966 General Electric documentation, this circuit controls an incandescent lamp from an audio signal. The circuit works like a rhythmic light.
We found this circuit in a 1968 Electronics World. The transistors are from the era and...
There are several manufacturers of the integrated circuit used and it also admits equivalents. The circuit...
This circuit is from 1971 American documentation. Transistors are still common except for 2N2060...