We found this circuit in the July 1994 Radio Electronics magazine. The circuit uses a general-purpose transistor, and the power supply can be up to 12 V depending on the relay.
This low power TTL circuit (Low Power Schottky) can generate rectangular signals on a 10 MHz...
This circuit with current up to 100 mA according to the transformer was found in the Radio...
We find this circuit in the manual of the used integrated circuits. The manual is from Linear...