This oscillator can generate 2 to 10 MHz signals and was found in an American 1980s documentation. The circuit is stable and its supply voltage is 5 V.
This circuit found in a documentation of the 90s, uses integrated common at the time, but...
This windshield wiper interval was found in an old documentation. The SCR can be the C106 and the...
This project from a 1983 publication can be assembled using more modern transistors. We can use...