This circuit has more power than the previous one, since it includes a powerful transistorized stage. The circuit is from Radio Electronics from July 1985. It includes the power supply.
This TTL circuit can be used as a shield, controlled by one of the inverters. The circuit must be...
Found in a 1980s publication, this circuit can be modified to use modern components and operate at lower...
This circuit was found in the February 1997 Electronics Now magazine. The circuit has a power...