We found this circuit in an old publication. The components used are rare today. Accuracy depends on the resistors in the input selection network. The circuit operates from 10 to 500 kHz.
This traditional triac dimmer configuration was obtained in a 1987 documentation. The circuit can...
This bandpass filter has a simple feedback system. The component values can be calculated using the...
The 709 integrated circuit is not common today. The circuit is from American technical...