Image: Undulator Tape
Size of this preview: 800 × 91 pixels. Other resolutions: 320 × 36 pixels | 4,416 × 501 pixels.
Original image (4,416 × 501 pixels, file size: 890 KB, MIME type: image/jpeg)
Description: A length of tape, 12mm (0.5in) wide, produced by an undulator similar to those used during the Second World War for intercepted 'Tunny' wireless telegraphic traffic at Knockholt, for translation into ITA2 characters to be sent to Bletchley Park
Title: Undulator Tape
Credit: Own work
Author: TedColes
Usage Terms: Creative Commons Attribution-Share Alike 3.0
License: CC BY-SA 3.0
License Link: https://creativecommons.org/licenses/by-sa/3.0
Attribution Required?: Yes
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