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SP2B

Information - Help 
ID = 10263
       
Country:
Hungary
Brand: Tungsram; Budapest (see also British T.)
Tube type:  Vacuum Pentode   RF/IF-Stage 
Identical to SP2B
Similar Tubes
Other base:
  KF4 ; SP2BS

Base Europe 5-Pin , B5 (Eu O, F, O5A) 1928 (Codex=Nu) Top contact with a cap.
Was used by Radio/TV-reception etc.
Filament Vf 2 Volts / If 0.05 Ampere / Direct / Battery =
Description

Codex gibt als Sockel an: England-7-Stift, alt (M7A).

 
Information source Taschenbuch zum Röhren-Codex 1948/49   

155.png SP2B: Telefunken Werkstattbuch
Wolfgang Bauer


Just Qvigstad
tungsram_sp2b_sp2bs_daten.png
SP2B: Roehrentabellen - Schimkus Hamburg
Trev Levick

Usage in Models 2= 1936?

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):2

Collection of

Collection of a member from D
 
sp2b_tungsram_1.jpg

SP2B
 

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