This integrated amplifier was found in a non-existent British magazine from 1975. The used integrated circuit is still popular and the mono bridged version can provide 36 W output power. 4 A.
This 100 kHz crystal controlled oscillator was found in an American 1980s documentation. The...
Only two transistors are used in this preamp for low-sensitive transducers, such as guitar and...
Found in Popular Electronics this circuit uses current components to control a pump in order to...