Found in a 90’s Radio Electronics magazine, this circuit uses a component from the time, difficult to obtain today.
This two-port monostable of the 4001 was suggested by an article in the April 1988 Radio...
We found this logic level indicator in a 1976 amateur radio documentation. The circuit is powered by...
This analog TV circuit can be used on a small transmitter. The circuit is from an 80's American...