Morse code sounder used over railway telegraph circuits
Morse sounder, c.1880. Double plate sounder., in wooden case with needle and dial at the top. Last used over railway telegraph circuits to transmit Morse code through a reversal of the current to distinguish dot from dash. The needle moved to left and right.
- Object Number:
- morse sounder
- Gift of NW Telecomms G.P.O.
- Permanent collection
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