This circuit was found in a 1968’s Motorola documentation. The transistor is from that time. The load can have resistances between 10 and 80ohm.
This 0.5 Hz filter was found in the December 1990 issue of Radio Electronics magazine. The power...
This circuit was obtained in the SGS manual of linear integrated circuits of 1982. The maximum...
This circuit allows linear brightness control of an LED from an input voltage. The power supply must...