Tone ringer II


Posted on Sep 25, 2012    7081

The XR-T8205 Tone Ringer is primarily intended as a replacement for the mechanical telephone bell. The device can be.powered directly from telephone ac ringing voltage or from a separate dc supply. An adjustable trigger level is provided with an external resistor.

Tone ringer II  - schematic

The circuit is designed for nominal 15 volt operation.

Leave Comment

characters left:

New Circuits