Pulse motor control (CB20554E)

This circuit was found in the PC documentation from 1996. The maximum current of the motor is determined by the transistor.

Photo transistor Amplifier TL061 (CB900E)
This circuit was found in a Texas Instruments’ publication. The circuit must be powered from dual...
13.8 V x 35 A Power Supply (CB1221E)
This circuit was obtained from an American publication of 1982, but can be easily assembled today...
Twin T Tone Oscillator (CB3956E)
This oscillator generates a sinusoidal tone of 1750 Hz determined by the twin-T. The circuit can be...