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Tube Database (7,341 tube types · 1,270 archive entries)

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Tube record

33S30B

Brand
Standard

Round Tip

Base
Dark Brown
Brand Extended
Standard Radiofabrik (SRF)
Country
Sweden
Getter
D-D Double Getter
Glass Color
Clear Glass
Mica
Triple Mica
Notes
They where mainly used in the aiming device for Haubitz cannons and Bofors (Swedish military supplier) was their main client. The tube was produced very sturdily to withstand the shock from the cannon blast and therefore has five support rods and triple micas to support the inner structure. Dark brown base, muddy black plates, double D-getters and marked with white ink factory production code on the anodes; RH2050 & RH2060., They where mainly used in the aiming device for Haubitz cannons and Bofors (Swedish military supplier) was their main client. The tube was produced very sturdily to withstand the shock from the cannon blast and therefore has five support rods and triple micas to support the inner structure. Dark brown base, muddy black plates, double D-getters and marked with white ink factory production code on the anodes; RH2050 & RH2060.
Archive ID
1l0b7uyq
Pin Color
Silver
Plate Color
Black
Tip Shape
Round Tip
Year
1948