We found this circuit in a Radio Electronics magazine from June 1992. The circuit has a power stage and is used with 4.5 MHz video TV signals.
This configuration, which uses a transistorized circuit in the feedback, provides a logarithmic response...
This receiver uses one of the first transistor types available on the market, the CK722, but it...
Suggested by General Electric in 1967 this circuit generates a single pulse when receiving a light signal...