Tektronix Hard Copy Unit 4531 – in other words a printer.
Presumably related to the digitising process.
CDE0052 |
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See full size image Caption: Tektronix Hard Copy Unit 4531 Description: Tektronix Hard Copy Unit 4531 - in other words a printer. Presumably related to the digitising process. Alt text: Tektronix Hard Copy Unit 4531 Image credit: Image credit: © Crown Copyright. All rights reserved. Photo subject date: |