Tech Forum

November 2011

Single-Stroke AC Bell

We would like to operate a single-stroke AC bell that would ring once every time the phone rings in cadence. The telephone line power — 40 to 120 VAC at 15 to 60 Hz — should power the bell. We prefer no external power supply. A typical single-stroke bell has a coil voltage of 24 VAC drawing 0.5 amps. Coil resistance is 10 ohms.

#11111
Michael Lenihan
Southampton, NY