This latching light alarm was found in the 1995 Encyclopedia of Electronic Circuits Volume 5. The circuit is powered with 12 V to provide a signal to a power stage.
This is the power supply for the amplifier in the previous circuit. We found it in the same Radio...
This circuit was found in an American publication from the 1980s. It can be made with most current...
This nonlinear gain circuit was found in a 1965 Electronic Design. The configuration can be used...