TELEPHONE No. 99


Street fire alarm telephone
These were used in simple direct public telephone fire alarm posts and call offices.  They are housed in Boydell Heads (shown to the left), which were mounted on posts, on the pavement, or attached to convenient walls.

This is a Magneto telephone.

Telephone includes (1928):-
1 x Cord, Inst., No. 222, waterproof.
1 x Roller, spring, for receiver cord.
1 x Cord, inst., No. 248.
4 x Springs, clip, Protector, G.
1 x Hook, Receiver, J.
1 x Switch, Receiver, No.2.
2 x Protectors, G.
1 x Terminal, No. 9.
1 x Receiver, Bell, No. 1A.
1 x Transmitter, No. 2.
1 x Coil, Induction, No. 1 or 12.
1 x Generator, No. 4C.

To be requisitioned separately:-
2 x Cells, Dry, Y.

Telephone includes (1947 and 1956):-
1 x Cordage, Inst., No. 2/F, Black.
1 x Protector and Fuse, No. 1 2/2 minus cover.
1 x Receiver, Bell, No. 1A.
1 x Cord, Inst., No. 2/22B, Brown, 33".
1 x Roller, spring, for receiver cord.
4 x Springs, Clip, Protector, G.
1 x Coil, Induction, No. 12.
1 x Switch Receiver, No. 2.
1 x Generator, No. 26A.
1 x Transmitter, No. 22.
1 x Hook, Receiver, J.
1 x Blocks Terminal No. 21/2 (1956).
1 x Blocks Terminal No. 21/3 (1956).
1 x Blocks Terminal No. 21/12 (1956).

To be requisitioned separately:-
4 x Cells, Leclanché, DS 5.

Diagram F.A. 110.

GPO Engineering Instructions on Fire Systems

 

 

 

 
 
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Last revised: September 28, 2019

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