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CV4004 Info
Country:  Great Britain (UK)      Brand:  Mullard Radio Valve Co. Ltd.;  
  Tube type:  Double Triode   Universal 
Tube ID = 27802
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Identical to CV4004 = 6057 = M8137
Similar Tubes ECC83 (other class quality (otherw. equal))   CV492 (other class quality (otherw. equal))   12AX7 (other class quality (otherw. equal))  

Base Loctal-9-Pin (B9G)
Was used by Military
Filament -: Indirect / -: Parallel / series AC/DC / If: 0.15 Ampere / Vf 12.6 Volts /
Description Special Quality Version of the ECC83, CV492. Heater centre-tapped for dual voltage operation. 
Literature - - Manufacturers Literature   

cv4004.jpg
RFJ
Roy Johnson

 
cv4004_so.png
ARRL Handbook 1972
Michael Schlör

 
No further Information for

CV4004    

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21AugX