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.
We found this circuit in a 2002 documentation. It still uses old type plugs, but it can be adapted to...
This circuit sounds when the input voltage drops below the value determined by the zener. The...
When the control level is increased from 0 to 1 (LO to HI), this circuit is activated, which...