In this oscillator circuit using 3 TTL inverters we have all the conditions for the frequency calculation. Power must be supplied with 5 V. The circuit is from an American TTL documentation.
This circuit uses separate sources for the power supply and the operational stage. The output...
This is the well-known lightning lamp that was published in the March 1988 issue of Saber...
This circuit is from the time when cars used contact breakers. This 80's version measures the dwell...