This circuit uses NOR ports to generate signals up to 10 MHz, depending on the crystal. The supply can be done with voltages from 5 to 15 V and the signal generated is rectangular.
This bank of switches can be programmed in a variety of ways for logic experiments. The circuit is from...
This timer controls two relays, each with a different timing, activated separately. The circuit is from...
This circuit was found in a 90s Electronics Now. The circuit can use a TIC106 for the SCR....