This simple wireless microphone circuit for the MW band was found in an old American documentation. The coil is the oscillator of an old MW radio.
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...