This protection circuit for standing waves was found in a manual of high frequency circuits and transmitters from the 1980s. The circuit is used with transmitters.
We found this configuration in a documentation for radio amateurs from 1974. The circuit can be...
Texas Instruments' low power operational amplifiers OPAx196 can be found on Mouser Electronics....
This low power amplifier circuit for speaker or phone is from the Philips Databook of 1990. The...