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ID = 53840
Soviet Union
Brand: Common type USSR (SU) tube/semicond.
Tube type:  High-vacuum Rectifier   Power-supply 
Identical to В-879
Similar Tubes
Normally replaceable-slightly different:

Base UX-Base (4 Pins (2 thick, USA 1924, UX) Top contact with a cap.
Filament Vf 2.5 Volts / If 1.75 Ampere / Half indirect / Specified voltage AC/DC
Description B-879 (Russian designation)
Va = 2650V Ia = 7.5mA
Text in other languages (may differ)
Dimensions (WHD)
incl. pins / tip
42 x 115 x 42 mm / 1.65 x 4.53 x 1.65 inch
Information source -- Collector info (Sammler)   Radio N°1 1946 (UdSSR)
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v-879brochage.png В-879
Jean Marchal

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