Centenary
Neophone, also known as the Horseshoe telephone.
There was also a Kingston Communications variant called the model 904 (non-regulated and regulated) and 908 (non-regulated type).
There is normally a circuit diagram in each phone - look under the printed wiring board.
See also Siemens Bros Neophone.
Click here for the circuit diagrams
Click here for conversion to new plug and socket
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Last revised August 09, 2006
FM2