Radios antiguas y Radios de Colección
R-1790
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País:
Estados Unidos
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| Idéntica a |
R-1790
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Válvulas Sucesoras
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1939
1630
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| Base |
SPECIAL TUBEBASE in general
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| Usada en |
Radar |
| Filamento |
Indirect |
| Descripción |
Orbital-beam hexode electron-multiplier VHF amplifier (secondary emission). This appears to be a very early prototype of the 1630 VHF amplifier. Giant acorn body, with 12 equally spaced radial pins.
The code is written by hand, with the date, Aug. 15,'39, and with a series of numbers, 15/4.7 - 16.
This sample comes with its lab built socket and bottom copper shield.
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Dimensiones
(Alt,Ancho,Prof.)
incl.pins/tip |
55 x x mm / 2.17 x x inch |
| Precios de válvulas |
1 Precios de válvulas (visible
solo para miembros)
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| Literatura |
-- Collector info (Sammler)
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Colección personal de
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| Cumplimiento de datos |
Más información |
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