This circuit was found in an Electronic Experimenter Handbook from the 90's. The coil can be formed by 4 turns of wire 28 with 0.5 cm diameter without core for the FM band.
The circuit shown in figure 8 is an application suggestion for ISL8107, a new integrated circuit from...
This blocking oscillator that appears elsewhere on this site from other sources, was found in a...
This is a diagram of a 1958 commercial receiver. The circuit was found in documentation at the...