This converter converts a signal in the 200 kHz to 3.8 MHz band into frequency signals that can be tuned on a 3.5 MHz receiver. Coil data not provided.
This circuit is recommended for alarm systems since it has a good output stage. The circuit is...
) Suggested by Philips in a 1968 documentation this circuit has very high 10 ohm on-load voltage...
No information is given about the transformers in this circuit suggested by Motorola in a 1968...