Stone Vintage Radio Museum - Antique Radios, Wireless, Crystal Sets, Tubes, and Valves

WWI British Army Complete Telegraph Station WWI British Army Complete Telegraph Station This is a complete telegraph stations used by the British army for receiving and transmitting telegraphy either in Simplex (SX) or Duplex (DX). It is fitted with a Variable Resistance Box interchangeable with a Sounder. The reason why this unit survived in this glorious condition is because it was kept in its case which has taken the brunt of one century's maltreatment! I presume units like these were connected in pairs at the end of telegraph lines one at military headquarters (as shown in the photo below where a number of them are operated by telegraphists) the other at the trenches for the purpose of relaying messages. Below is an IWM photograph captioned "Battle of the Somme July 1916; interior view of men using Morse code equipment in a signal exchange". It is in a signal office, it would appear that there are six separate circuits, judging by the number of sounders visible. These circuits would probably be routed to army/corps/divisional headquarters. Morse signals are read via the sounders (the boxes on each bench). The sounder employs a slightly different principle for reading the signal, where instead of reading the signal you read the silence between the morse symbols. More information on WWI telegraph in the UK can be seen at http://www.royalsignals.org.uk/signals.htm

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