This circuit amplifies signals from 0.5 Hz to 300 kHz. We found it in an old documentation. Equivalent transistors may be used. The gain is 20 dB.
Suggested by General Electric, this circuit with triac is able to reverse the rotation of a motor...
This active crossover filter was obtained from the component manual used. Below is the performance...
This circuit uses a current regulator from the 90's. This component is uncommon nowadays. The...