This stage of IF to 455 kHz operates with voltages from 1.5 V. We find it in a 90s Popular Electronics. The integrated circuit is uncommon today.
Found in a September 1992 Radio Electronics magazine article, this circuit generates a pulse as...
This circuit consists of a charge pump with positive input and negative output. We find it in a...
Unlike the previous circuit, which is an inverter type, this one is non-inverting. The circuit...