We found this circuit in documentation from National Semiconductor. For the medium wave range the coil consists of 50 + 50 turns of wire 28 in a ferrite rod.
We found this circuit at Popular Electronics. The components are still current. Changes can be...
This circuit was obtained in a 1965 American magazine translation. The coil is formed by 40 + 40...
Found in 1968 Mullard documentation, this circuit uses period components. The transistors are...