Radios antiguas y Radios de Colección
889_No-2
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País:
Estados Unidos
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| Idéntica a |
889_No-2
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| Base |
Octal (Int.Octal, IO) K8A, USA 1935
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| Usada en |
Technology / Measurement |
| Filamento |
Vf 1.5 Volt / If 1.5 Ampere / Indirect |
| Descripción |
This tube is designed to demonstrate the principles of the electron lens and how they can be used to function as a microscope. In the tube the surface of the oxide coated nickel cathode is enlarged approximately 25 times and projected on to a fluorescent screen (which glows green) at the top of the tube.
Focus electrode voltage 0 - 300; Anode voltage 500-1000
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Dimensiones
(Alt,Ancho,Prof.)
incl.pins/tip |
x 163 x 52 mm / x 6.42 x 2.05 inch |
| Literatura |
Tube Lore (II) p. 81
Electronics December 1936, p. 52
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Just Qvigstad
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[rmxtube-en]
| Cumplimiento de datos |
Más información |
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