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Buy this image as a print
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LicenseTransmitting valve type TT4A, made by M-O Valve Company Limited
Science Museum Group
Transmitting valve type TT4A, made by M-O Valve Company Limited
Science Museum Group Collection
© The Board of Trustees of the Science Museum
Transmitting valve type TT4A, made by M-O Valve Company Limited
Science Museum Group Collection
© The Board of Trustees of the Science Museum
Transmitting valve type TT4A, made by M-O Valve Company Limited, England, 1919-1922. Transfer logo on the valve reads "VALVE WRLESS TANSMITTING, PATT NO. 5199A, TT4A". On the reverse it reads "MANUFACTURED BY THE M.O. VALVE CO. LTD. MADE IN ENGLAND".
Details
- Category:
- Electronic Components
- Object Number:
- 1922-433
- Materials:
- glass, brass (copper, zinc alloy), wood (unidentified), plastic (unidentified), metal (unknown) and textile
- Measurements:
-
overall: 400 mm x 200 mm x 200 mm, 1.235 kg
- type:
- thermionic valve
- credit:
- Donated by the M. O. Valve Company Limited
