BELL No. 44

This is a trembler bell with single four inch diameter nickel-plated gong (Bell-gong No. 7).

Originally wooden cased with later models being plastic cased.

For internal use only.

Height
10.5 inches.

Operating Voltage Range
Check diagram N644 as the voltage is dependent on the terminal strapping arrangement.
No. 44A - (2 x 5 ohm coils).
No. 44B - (2 x 250ohm coils).
No. 44C - 10v-50v DC single gong bell (2 x 1000 ohm coils).
No. 44D - 2v-10v DC single gong bell (2 x 50 ohm coils).

Bells No. 44A was superseded by Bell No. 44D and Bell No. 44B was superseded by Bell No. 44C, both in 1956.

There were three Marks with the Mark 3 being introduced in 1955.

Bells No. 44 were generally used on House Systems.

Drawing - 90488 (Mark 3).

Diagram - N644A.

Specification - S525.