Fullerphone, P.O. pattern 237A

Buy this image as a print 

License this image for commercial use at Science and Society Picture Library

Fullerphone, P.O. pattern 237A. In 1915, British Army Captain Algernon Fuller developed equipment for sending messages
Science Museum Group Collections
© The Board of Trustees of the Science Museum, London

Fullerphone, P.O. pattern 237A

In 1915, British Army Captain Algernon Fuller developed equipment for sending messages by telephone and Morse code telegraph.

Though called a Fullerphone, the telephone handset was not fully secure and was only intended for emergencies.

In secure telegraph mode, sets sent and received messages using filtered electric current at low voltage, making the Morse code signal almost impossible to detect.

Fullerphones were used by Britain and its allies for the rest of the First World War and into the Second World War.

Details

Category:
Telecommunications
Object Number:
1924-195
credit:
War Office (Royal Dockyard)

Cite this page

Rights

We encourage the use and reuse of our collection data.


Data in the title, made, maker and details fields are released under Creative Commons Zero


Descriptions and all other text content are licensed under a Creative Commons Attribution 4.0 licence

Using our data

Download

Download catalogue entry as json

View manifest in IIIF viewer

Add to Animal Crossing Art Generator

Download manifest IIIF

Our records are constantly being enhanced and improved, but please note that we cannot guarantee the accuracy of any information shown on this website.