This circuit with TTL compatible output was found in a 1968 US documentation. The circuit is powered by 5 V and the frequency can be changed by changing the crystal.
This circuit was found in an American documentation from the 90's. The circuit is intended for...
This circuit can reduce the voltage of a source by providing regulated adjustable output. The...
Found in a 90s Popular Electronics, it serves both TTL and CMOS logic. The injector can provide 10...