STERLING TELEPHONE AND ELECTRIC Co. Ltd


WATERTIGHT BATTERY RINGING MINING TELEPHONE

No. U 565

Battery Ringing Mining Telephone in Water­tight Iron Case with hinged front, and comprising Capsule Inset Shot Carbon Transmitter, Induction Coil, large pattern powerful Double Pole Receiver, Hand Ringing and Speaking Switch, substantial Connecting Terminals and Stuffing Gland for leading-in.

Note: This Telephone complies with Home Office requirements.


LONG-DISTANCE WATERTIGHT BATTERY RINGING MINING SET

No. U 565a

Long Distance Battery Ringing Mining Set, comprising Telephone No. U 566 as above, mounted on Painted Oak Backboard, with best quality Waterproof Relay No. S 6161 (40 ohms) and Gas and Watertight Diaphragm Bell, No. S 6007a, fitted with 6 in. Bell-metal Gong.

This set is recommended for use over distances exceeding 300 yards.

Relays of higher resistances for long Distances can be fitted if required.

NOTE: If the above is required for use as a Signalling Instrument and also to answer as a Receiving Station for Portable Telephone No. U 571 , mention of this must he made on the order.

Note: This Telephone complies with Home Office requirements.


 

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Last revised: April 06, 2001