This simple digital circuit tester can work with TTL technology when powered by 5 V and with CMOS when powered by voltages from 3 to 15 V. The circuit provides LED indications and uses current ICs.
In the figure we have the amplifier application in a NOR gate, with reference voltage equal to the...
Found in 1965 Radio Shack documentation, this circuit has a crystal phone output in the 14.8 kHz...
This oscillator or clock generator generates rectangular signals and frequencies up to 100 kHz....