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We found this circuit in GE's 1977 semiconductor manual. The optical isolator uses an opto-SCR, and the lamp must be 25 W maximum. Only incandescent lamps should be used.
We find this circuit in an old American manual from the 80's. The circuit has a memory that keeps...
The circuit suggested by National Semiconductor in its 1994 Linear Applications Handbook,...
This simple circuit for switching RF signals was found in an RF Design from the 90s. The circuit...