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 sophisticated circuit of the coin-toss game was found in an American 1980s documentation. The circuit...
The circuit shown in the figure can generate signals up to 1.6 GHz. Coil L1 and capacitor C2 are...
This basic circuit is from an old documentation. The relay must be 50 mA maximum and must have a...