This electronic Morse Key for telegraph message transmission was found in an American 1980s amateur radio documentation. The circuit uses TTL technology and must be powered by a 5V voltage.
This stage was found in a 1964 Electronic Design. The transistors are of the time and the shape of...
This circuit is from an 80's American documentation. The circuit uses components of the time which...
This circuit can reduce the voltage of a source by providing regulated adjustable output. The...