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AR7

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ID = 13767
       
Country:
Great Britain (UK)
Brand: Common type Great Britain tube/semicond.
Tube type:  TRIODE (Detail uncertain) 
Identical to AR7 = CV1109 = NR55 = CV1000 = VR109A = 10E/11098 = VR109
Predecessor Tubes 4D1_Loewe  

Base British-7-Pin, old (M7A) (Codex=Na) Top contact with a cap
Filament Vf 13 Volts / If 0.15 Ampere / Indirect
Description According to the specs for CV1000 and CV1109, both giving AR7 as direct equivalence, at least two sources exists for this tube with different heater current drains. A 200mA heater current version of AR7 is given in the spec sheet of the CV1109. 
Literature Taschenbuch zum Röhren-Codex 1948/49   
-- Original-techn. papers.   
 
ar7_sock.png
AR7: Tabu Röhren-Codex, 1948
Anonymous 15 Collector

 
cv1000_1_1.png
AR7: Manufacturer's Literature
Emilio Ciardiello


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