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660T

Information - Help 
ID = 15402
       
Country:
Great Britain (UK)
Brand: Cossor, A.C.; London
Tube type:  Transmitting Triode, air cooled   Power/Output 
  Ca. 1925 up to 1945 rare.
Identical to 660T = DA60 = DO60 = ES60 = MZ05-60 = CV1206
Predecessor Tubes 64XP  

Base L4 British large 4 pin (1922, LG4) (Codex=Eo)
Was used by Transmittertube (Radio)
Filament Vf 6 Volts / If 4.5 Ampere / Direct / Parallel, (AC/DC)
Description

Pa<60W, Va <500; Ia=120mA at Vg= -120, gm=2.5mA/V Ra=1000. Po=11W

 
Dimensions (WHD)
incl. pins / tip
80 x 185 x mm / 3.15 x 7.28 x inch
Information source Taschenbuch zum Röhren-Codex 1948/49   
History of the British Radio Valve to 1940   p.171 & 204
 
l4_based_triode~~4.png
660T: Fin Stewart
Fin Stewart

 

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