This interface or shield circuit provides an output 1 from 3.3 V logic. The circuit is from old Optical Electronics documentation.
We found this transformer-isolated control circuit in a June 1995 Electronics Now. The triac must...
This TTL circuit for PC was found in an English documentation from 1992. The integrated circuit used...
We found this circuit in a Popular Electronics from the 90's. The circuit uses three SCRs to...