The circuit shown was obtained in American documentation from 1968. MOSFETs can be replaced by equivalents. The circuit dissipation is less than 0.5 mW.
This high voltage oscillator with a neon lamp was found in a 1969 documentation. The circuit is...
This simple radio uses few components due the direct coupling of the transistors. Coil is formed...
We found this configuration in a documentation for radio amateurs from 1974. The circuit can be...