Found in American documentation from the 1980s, this circuit shows how to use an LM3909 pulsator in a high-power variable circuit.
We found this amplifier for automotive use in the Philips integrated circuit manual from 1990. The...
Hartley oscillator operates in the audio range. Frequency can be adjusted by P1 and also depends...
This 555-based circuit was obtained from the 1995 Encyclopedia of Electronic Circuits volume 5. It...