Radios antiguas y Radios de Colección
ME-664-A
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País:
Japon
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| Idéntica a |
ME-664-A
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| Válvulas similares |
Substituya normalmente -diferencia peq.:
954
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| Base |
SPECIAL TUBEBASE in general
Top contact.
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| Usada en |
Militaire et/ou Services Publics |
| Filamento |
Vf 6.3 Volt / If 0.15 Ampere / Indirect / Specified voltage AC/DC |
| Descripción |
The ME-664-A is an "acorn style" pentode manufactured by NEC for use as a VHF amplifier, detector or oscillator. It was used for the "Tachi 6" Early Warning Radar developed in 1942 as the RF amplifier and the local oscillator.
So the ME-664-A should be developed in 1942 or just before 1942.
Plate Voltage: 250 V
G2 Voltage: 100 V
G1 Voltage -3.0 V
Plate Current: 2.7 mA
gm: 1,500 Micromhos
Plate Resistance: 0.8 Megohms
Heater Voltage: 6.3 V
Heater Current: 0.15A
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Dimensiones
(Alt,Ancho,Prof.)
incl.pins/tip |
x 123 x 45 mm / x 4.84 x 1.77 inch |
| Peso |
48 g / 1.69 oz |
| Literatura |
Babani, International Radio Tube Encyclopaedia Dawn of Tube Production in Japan - Ohtsuka.
-- Collector info (Sammler) Dawn
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ME-664-A: H. Kato
Stefan Müller
Mas ...
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