radiomuseum.org
Please click your language flag. Bitte Sprachflagge klicken.

BB220A

Information - Help 
ID = 15583
       
Country:
Great Britain (UK)
Brand: Lissen Ltd.; London and Richmond, Surrey
Tube type:  Double Triode   Power/Output 
Identical to BB220A
Similar Tubes
Normally replaceable-slightly different:
  B21

Base British-7-Pin, old (M7A) (Codex=No)
Was used by Radio/TV-reception etc.
Filament Vf 2 Volts / If 0.2 Ampere / Direct / Battery =
Information source Taschenbuch zum Röhren-Codex 1948/49   
History of the British Radio Valve to 1940   p. 146

s_410_g_5.gif BB220A: W.Sprick: Austausch-Röhren-Lexikon 1947
Günther Stabe † 19.8.20


Just Qvigstad
Usage in Models 1= 1934?

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):1
 

You reach this tube or valve page from a search after clicking the "tubes" tab or by clicking a tube on a radio model page. You will find thousands of tubes or valves with interesting links. You even can look up radio models with a certain tube line up. [rmxtube-en]
  

Data Compliance More Information