The integrated circuits used in this oscillator are not very common today, as we obtained it in documentation from the 1980s. The circuit must be powered by a symmetrical source.
This circuit, which may have other applications, trips a load if the voltage on the telephone line...
This UHV generator circuit or ultra-high voltage was found in a 90s Electronic Engineering 90s. The triac...
This circuit is from an old American documentation from the 70s. Transistor 2N3904 can be replaced by...