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.
The difference of this 1982 circuit is the fact that it uses the input signal itself to obtain the...
We found this circuit in the March 1992 issue of Radio Electronics magazine. The circuit has a...
This circuit, suggested by Texas Instruments, uses a TIS43 or 2N2646 to produce short light pules. The...