This circuit was obtained in an old documentation, receiving the medium wave range. L1 has 20 + 60 turns of wire 26 to 30 in a ferrite rod 10 to 20 cm long.

This circuit was obtained in an old documentation, receiving the medium wave range. L1 has 20 + 60 turns of wire 26 to 30 in a ferrite rod 10 to 20 cm long.