This generator is more complete than the previous one, being able to generate pulses as indicated in the table next to the diagram. In the original, a 556 was used which is a double 555.
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...