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ID = 23112
Brand: Phönix Röntgenröhrenwerk, Rudolstadt (Ostd.)
Tube type:  Transmitting Tube, Pentode, air cooled 
Identical to SRS502
Successor Tubes SRS457  

Base 2 Top contacts.
Filament Vf 12.6 Volts / If 8.5 Ampere / Direct / Parallel, (AC/DC)
Dimensions (WHD)
incl. pins / tip
102 x 280 x mm / 4.02 x 11.02 x inch
Weight 800 g / 28.22 oz
Tube prices 2 Tube prices (visible for members only)
Information source
SRS502: eigenes Foto
Holger Drechsel

SRS502: Broschüre VEB-Röhrenwerk Rudolstadt
Oskar Elm

SRS502: RFT-Spezialröhren 1968
Anonymous 15 Collector

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