Este circuito es de una Popular Electronics. El timbre es del tipo Sonalert con oscilador incorporado. El circuito debe ser alimentado por batería y S2 lo reinicia. El sensor es una placa con el patrón que se muestra en la figura.

Alarma de fugas
Este circuito es de una Popular Electronics. El timbre es del tipo Sonalert con oscilador incorporado. El circuito debe ser alimentado por batería y S2 lo reinicia. El sensor es una placa con el patrón que se muestra en la figura.
El propósito de este circuito es limitar la intensidad de la señal producida por un oscilador. Nos...
Este circuito utilizaba transistores de germanio y era alimentado por 6 pilas que también eran...
Este circuito es de una documentación americana antigua. El transistor puede ser el BC548 u otro...
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