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Moorhead-Special See also:
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This exhibit is the Moorhead Special transmitting valve that was made for the US market. The internal gettering gives the glass a gold appearance.Thanks to Joe Gruber for sending the images.The balloon envelope is mm in diameter and, excluding the base pins, is mm tall.Reference: Joe Gruber. Type Moorhead-Special was first introduced in 1917. See also 1917 adverts. |
Pin Connections
| 1 | 2 | 3 | 4 | g1 | f | f | a |
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Updated February 08, 2021.
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