This circuit is from the 1982 SGS Linear Circuits Manual. The circuit provides currents from 35 mA to 1.5 mA set at P1 and Vref voltages at 26 V set at P2.
This configuration of the 1980s uses NAND A-type CMOS ports, which have a linear response with...
This circuit from Delta Products was published in the May 1974 Radio Electronics magazine. The...
This encrypted key was found in a 1989 documentation. It controls a relay that is activated only...