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.
In the figure we have the way to obtain hysteresis of an operational amplifier LM111. The circuit is...
Found in Radio Electronics from the 90s, this circuit produces pulses to test an infrared...
This circuit was obtained in a Popular Electronics of 1991. The magazine no longer exists, but the...