RECEIVER, BELL No. 1A

This is a hand held receiver used on telephones connected to Central Battery Systems.  It is covered with a ebonite coating which acted as an insulator.  Originally the Ebonite was black but most are now a discoloured brown or fawn colour.

The coil resistance is 60ohms.

The Earpieces are made of Bakelite.

A Cord, Instrument No. 2/22B, Brown, 33" is used to connect the receiver to the telephone.

Mark B includes:-
Earpiece No. 1.
Diaphragm No. 9.

Marks C, D and 4001 include:-
Earpiece No. 2.
Diaphragm No. 12.

Mark N.T. 10 includes:-
Earpiece No. 1.
Diaphragm No. 19.

Drawing - 62653.

A Mark C, D or 4001

A Mark C, D or 4001 broken down to component parts