This circuit was found in an American documentation from 1977. The circuit can be implemented with modern equivalent components. The coil depends on the tuned band. 4 turns in the form of 1 cm without core are used for the 100 MHz band coil.

This circuit was found in an American documentation from 1977. The circuit can be implemented with modern equivalent components. The coil depends on the tuned band. 4 turns in the form of 1 cm without core are used for the 100 MHz band coil.