With this passive circuit it is possible to modulated in amplitude a low intensity RF signal. The circuit is from old American documentation and uses a germanium diode as its main component.
This circuit can gerenate square signals and be comanded by na external control. When the input...
Hartley oscillator operates in the audio range. Frequency can be adjusted by P1 and also depends...
We find this vibrato configuration with transistors in a 1987 documentation. The components are still...