Eighth-Order Filter (CB6741E)

This low pass filter has attenuation of 5.5 dB and the frequencies depend on the values of the components in the case 1 kHz.

| Clique na imagem para ampliar |

Light change detector (CB22058E)
This circuit only detects variations in light falling on the sensor. The circuit uses an LM380 as a...
Electronic Tornado (CB25108E)
This is the well-known lightning lamp that was published in the March 1988 issue of Saber...
Light relay (CB23551E)
This photoelectric cell light relay was found in Radio Electronics magazine from April 1958. The...