This reducer was found in documentation from the 1980s, using transistors of the time. The higher current transistor must have an excellent heat sink.
This sensitive 5-band circuit was found in a September 1995 issue of Electronics Now magazine. The...
This circuit with the ICL8068 was taken from an article in the February 1981 Radio Electronics magazine....
Capacitor C and resistor R in this circuit determine the time the output remains at the high level...