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 was found in the used integrated circuit manufacturer's manual. The table beside the...
This circuit makes use of germanium transistor, but can be mounted with a silicon transistor like...
This circuit is intended to indicate the operation of transmitters with powers above 5 W. The...