With this circuit, signals in the range of 10 kHz to 150 kHz can be received at close to 4 MHz from a shortwave receiver. The circuit is from a 303 Circuits from the 90s.
Found in American documentation, this switch is based on the 4093. The load will determine the...
This circuit was found in a 90s Electronic Design. The integrated circuits are from that time....
The circuit shown was obtained from a 1976s publication for radio amateurs. Its purpose is to...