Found in Electronics Engineering, this sophisticated circuit makes use of components that are still common today. The circuit is connected to the output of the stereo amplifier.
This circuit was found in a Delco 1965 publication. Transistors may be current equivalents according...
This circuit makes an incandescent lamp blink in order to vary its brightness with a candle...
This configuration was found in a 1970s American magazine. The circuit uses both CMOS logic and...