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 5-transistor receiver for the medium wave range was described in an article in Radio...
This circuit is from an American publication from 1978 and can currently be assembled with minor...
Although ECL logic is rare (no longer used), this circuit from a 1992 documentation shows how to...