Suggested by General Electric, this circuit with triac is able to reverse the rotation of a motor through a DC control signal. The circuit applies to AC servos.
Found in a 1960 Sylvania manual, this circuit can be implemented with a modern equivalent...
This configuration, already presented in other points of this section and website, is of a...
We found this precise crystal oscillator for the 144 MHz band, depending on the crystal used. The...