Dial Signal Detector (CB21274E)

This circuit was found at Electronics Now. It can be used as a shield detector for dial signals in an automation project.

| Clique na imagem para ampliar |

Electronic Thermometer (CB21356E)
This analog thermometer was obtained from an English documentation. The sensor is a common diode...
RF Sensor (CB4117E)
This circuit is a kind of Hertz Loop that can be used to check the operation of transmitters and...
AC Voltage Regulator LM317 (CB13053E)
Two 3-terminal regulators like the LM317 can be used to "clip" a sinusoidal signal, in order to...