Catalogue
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Puratone Rubon Radio Valve, by Puratone Rubon, Britain, 1924
Inventory Number: 31417
Number of documents: 1
Document Type: Miscellaneous Note
Document Heading: Manufacturer Details
Text:
Rubon (Puratone) were a very minor and obscure manufacturer of British radio valves and produced two types of valves in 1924.
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