Light Beam Alarm (CB25487E)

Details
Written by: Newton C. Braga

 

We found this circuit in the July 1992 issue of Radio Electronics magazine. An optical system produces the light beam that, when interrupted, triggers the alarm. The sensitivity is adjusted by R4.

 


| Clique na imagem para ampliar |

 

 

 

  

Latest

Circuit Bench

  • Vox (CB24516E)

      This audio-driven relay was published in the July 1977 issue of Radio Electronics magazine. The...

  • Incandescent flasher (CB12989E)

      This circuit can be used for signaling a panel with a common incandescent lamp. The lamp will...

  • 455 kHz Oscillator (CB3873E)

          This crystal oscillator is indicated for the calibration of IF steps of common radio receivers. The...

Buscador de Datasheets


N° de Componente