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Rogers Radio Tube Type VR56, by Rogers, Canada, Mid 20th Century

Inventory Number: 64947

Number of documents: 1


Document Type: Miscellaneous Note

Document Heading: Historical Background

Text: 

The VR56 was a pre-WW2 military receiving pentode valve. The VR prefix was the military designation, while the civilian designation was EF36. Air Ministry indicates RAF usage.


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