Found in an Electronics World of 1968, this circuit is indicated for applications in photography making the control of a camera aperture. The components are from the time.
This speed control for motors up to 500 mA was obtained in an old European documentation, but it...
This circuit cuts a rectangular signal, and a trapezoidal signal is obtained. The circuit is from...
This low frequency sinusoidal oscillator was obtained in documentation from the 1970s. Operational...