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.
We found this circuit in Radio Electronics magazine from May 1967. The circuit has the tuned...
This old two-stage video amplifier uses integrated circuits that are not easily obtainable today. The...
Found elsewhere in this section, this circuit produces an output voltage approximately twice that...