Record revealed
Copy of Henry VIII's diplomatic assurances to João III of Portugal
Recently rediscovered, this letter offers new archival evidence into Britain and Portugal's shared history.
Piece
Frequency modulation of a Sutton tube by means of a rotating ring
Catalogue reference: AVIA 26/343
What’s it about?
This record is about the Frequency modulation of a Sutton tube by means of a rotating ring dating from 1943 in the series Ministry of Aviation, predecessors and successors: Royal Radar Establishment (later.... It is held at The National Archives, Kew.
Is it available online?
No, this record is not available online. However, you can order a copy. Other ways to view it.
Can I see it in person?
Yes, this record is held at The National Archives and is available to see in person. How to view it.
Full description and record details
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Reference (The unique identifier to the record described, used to order and refer to it)
- AVIA 26/343
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Date (When the record was created)
- 1943
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Description (What the record is about)
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Frequency modulation of a Sutton tube by means of a rotating ring
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Held by (Who holds the record)
- The National Archives, Kew
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Former department reference (Former identifier given by the originating creator)
- T 1341
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Legal status (A note as to whether the record being described is a Public Record or not)
- Public Record(s)
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Closure status (Whether the record is ‘open’ (available to the public) or ‘closed’ (not available due to a legal exemption))
- Open Document, Open Description
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Subjects (Categories and themes found in our collection (our subject list is under development, and some records may have no subjects or fewer than expected))
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- Topics
- Research
- Communications
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Record URL
- https://beta.nationalarchives.gov.uk/catalogue/id/C2381935/
How to order it
- View this record page in our current catalogue
- Check viewing and downloading options
- Select an option and follow instructions
Series information
AVIA 26
Ministry of Aviation, predecessors and successors: Royal Radar Establishment (later...
See the series level description for more information about this record.
Catalogue hierarchy
Over 27 million records
This record is held at The National Archives, Kew
96,520 records
Within the department: AVIA
Records created or inherited by the Ministry of Aviation and successors, the Air...
2,327 records
Within the series: AVIA 26
Ministry of Aviation, predecessors and successors: Royal Radar Establishment (later...
You are currently looking at the piece: AVIA 26/343
Frequency modulation of a Sutton tube by means of a rotating ring
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