Suggested for the control of photographic enlargers, this 1967 General Electric circuit uses still common components. The circuit directly controls a lamp for exposing negatives.
Found in a 1990s Popular Electronics, this circuit uses two transistors to boost the power of a...
This compressor circuit was obtained in a Motorola manual from the 80's. The components are from...
September 2016 – At Mouser Electronics is available audio drivers for the purpose of suitable...