This circuit can be used with 3 receivers and is intended for low frequencies (medium wave range). We found it in the September 1995 Electronics Now magazine.
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...