This configuration can be implemented with equivalent operations. The circuit is from the 1990 Motorola Linear Databook. The voltage gain is 100 times.
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...