Found in 1965s General Electric documentation, this circuit is intended for the control of servos connected to the power grid. Equivalent modern components can be employed.
This circuit activates an old conventional cassette recorder when the telephone line is answered and...
This circuit can generate signals from 1 Hz to 20 Hz in 2 Hz ranges. The table next to the diagram...
This oscillator produces a signal with a central frequency in 1 MHz. This frequency can be...