This motor speed control with tachometer sensor was found in the 1993 Radio Experimenter Special Projects. The maximum current is 2.4 A.
This circuit was obtained from an English magazine from 1976. The circuit operates two LEDs and...
Found in a publication from the 60's, this power supply has no regulation, but only current...
This circuit can use the LM148 and its more modern equivalents, generating a sinusoidal signal whose...