This traditional TTL configuration was obtained in a 1977 documentation. The supply must be made with 5 V and the capacitors can be changed for operation at other frequencies.
This is a diagram of a 1958 commercial receiver. The circuit was found in documentation at the...
This circuit uses two diodes in a doubling configuration to receive medium-wave range signals. The...
January 2017 - New ROHM TFZV series of zener diodes is now available from Mouser Electronics. The...