This circuit was obtained from an 80's Radio Electronics. The circuit decodes “scrambled” or sinusoidal encoded signals by providing an audio signal at the output.
This circuit turns on and off when a short pulse is applied by SW to the input of the first...
This circuit is from Radio Electronics. The magazine no more exists, but the circuit can be...
Found in a 1980s publication for amateur radio, this circuit employs an MC1596G which is a...