This circuit was obtained in a 1980s publication, but it can be easily assembled today, as all components are common. The transformer is 12 + 12 V with at least 1 A and the diodes 1N4002.
This circuit came out at a Wireless World in January 2000. The circuit can be easily assembled as it uses...
We found this transmitter circuit for different frequency ranges in a 1992 documentation. The...
This TTL circuit can be used as a shield, controlled by one of the inverters. The circuit must be...