Walter’s EM Co Ltd 2709 III 1915 Double Current Telegraph Morse Key
This wonderful looking gadget is a Walter’s EM Co Ltd 2709 III 1915 Double Current Telegraph Morse Key. It belonged to Bill Horniman, radio call sign G2WH, Ex. Royal Signals based in Puna, India.
This key is a very rare find and has not been tested. Unlike most keys of the period, which were a single current system with current flowing in one direction, this is a double current system which uses a polarised relay to neutralise the residual charge on the line. Current flows in one direction through the relays to produce the Morse code dot or dash, and flows in the opposite direction to produce the spaces. This enabled the user to handle higher rates of data.
Mounted on wood it is In reasonable condition, with discolouration/scuffing of the brass/bakelite and wood. I haven’t attempted to polish it.
- Made from Brass, Wood, (Paxolin?)
- Double Current Telegraph Morse Key
- Dates to 1915
- Model 2709 III
- Jack Plug attached
- Manufactured by Walters Electric Manufacturing Company Limited
- Owned by Bill Horniman G2WH Ex. Royal Signals, Puna, India.
Walters Electric Manufacturing (E.M) Company Limited were based in Kensal Rod, London, and produced a wide range of telegraph, telephone, and electrical instruments in the early 1900s.
A great find for all collectors of military keys or radio communication aficionados!
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