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ME-664-A

Informazioni - Aiuto 
ID = 43073
       
Stato:
Giappone
Produttore: NEC Corporation, Nippon Electric Co. Ltd. (Nippon Denki); Tokyo
Progettista: NEC Corporation, Nippon Electric Co. Ltd. (Nippon Denki); Tokyo 
Tipo:  Pentodo a vuoto   Frequency converter 
Identico a ME-664-A
Valvole simili
Sostituita normalmente - piccola diff.:
  954

Zoccolo SPECIAL TUBEBASE in general Top contact.
Utilizzata per Militaire et/ou Services Publics
Filamento Vf 6.3 Volt / If 0.15 Ampere / Indirect / Specified voltage AC/DC
Descrizione

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

 
Dimensioni
(LxAxP)
incl.pins/tip
x 123 x 45 mm / x 4.84 x 1.77 inch
Peso 48 g / 1.69 oz
Bibliografia Babani, International Radio Tube Encyclopaedia   Dawn of Tube Production in Japan - Ohtsuka.
-- Collector info (Sammler)   Dawn

me_664_a_sockel.png ME-664-A: H. Kato
Stefan Müller

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me_664a_shinagawa_uecm.jpg

 

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