STERLING TELEPHONE AND ELECTRIC Co. Ltd
UNBREAKABLE HAND SET FOR MINES

No. U 571

Portable Hand-Combination, comprising:
Special Inset Transmitter and Receiver, fitted in Unbreakable Aluminium Case with Switch Key and Waterproof flexible Cord (Two-way or Four-way as required).

This Instrument is very suitable for cases where a portable Telephone is required for use on the existing signal wires

The Telephone at the Engine House should be No. U 565A with a 1,000 ohm Relay. If ordering the latter for this System please state for use with No. U 571 on signalling wires.

NOTE: We shall be pleased to quote for this Hand Combination adapted to suit special requirements.


 
 
BACK Home page Sterling Main Menu Search the Site Glossary of Telecom Terminology GEC Telephone Quick Find All Telephone Systems

Last revised: April 28, 2021

FM2