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French Unis BW602
French UNIS BW602 2 volt triode

BW602
The filament voltage is 2.0V. At Va=150 Vg1= -12,
anode current is 12 mA and gm is 3.4 ma/V (mS). Anode
dissipation about 2W. Data for this valve comes from the AVO Valve
Data Manual, 15th. 1962 edition.