5 to 60 kHz FM Demodulator (CB25782E)

This 555 IC circuit was found in the November 1994 issue of Radio Electronics magazine. The circuit can be powered by voltages from 12 to 24 V.

| Clique na imagem para ampliar |

Modulated Siren (CB13036E)
The automatic modulated siren circuit shown in the figure really produces an interesting sound...
Delayed light (CB10091E)
This circuit for incandescent lamps was found in a 70s documentation. The circuit uses an SCR...
Cascading the LM3914 (CB24656E)
In the figure we have a circuit in which two moving bar/dot indicators are connected together to...