This small commercial radio for the MW band with germanium transistors was found in Japanese documentation from the 1960s. The circuit is powered by a 9 V battery and has a 455 kHz IF.
This circuit was found in a publication by Gernsback from 1960. The circuit generates signals from...
This oscillator has the output sine waveforms stabilized by a MOSFET. Equivalent types can be...
This circuit that uses components that are still very common on the market was obtained in a 1997...