This circuit can be used as an answering password system in a store, office, or other location. The circuit is from Intersil using components of the time. The circuit is from the 80's.
Unlike the previous circuit, which is an inverter type, this one is non-inverting. The circuit...
In the figure we have the simple way to use a low current switch or sensor to drive a high power...
This crystal-controlled oscillator can generate signals up to a few dozen megahertz. We found it...