GNT model 309 undulator for recording Morse code
- Made:
- Denmark
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LicenseUndulator (G.N.T. Model 309)
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© The Board of Trustees of the Science Museum
GNT model 309 undulator for recording Morse code, capable of recording at speeds up to 300 words per minute, made at GNT Works
Details
- Category:
- Telecommunications
- Object Number:
- 1973-568
- type:
- recorder
- credit:
- G.N.T. Automatic (UK) Ltd.
