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DQ4

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ID = 6993
       
Country:
Switzerland
Brand: BBC - Brown Boveri; Switzerland
Tube type:  Half-Wave Mercury-Vapor Rectifier   Power-supply 
Identical to DQ4
Similar Tubes
Other characteristic (electr. data):
  DQ45
Other base:
  DQ4a ; DQ4c

Base Jumbo 4-pin bayonet (1918) Top contact with a cap.
Was used by Industrial
Filament Vf 5 Volts / If 7.5 Ampere / Direct
Description

4-Stift-Sockel

 
Dimensions (WHD)
incl. pins / tip
x 216 x 56 mm / x 8.50 x 2.20 inch
Weight 220 g / 7.76 oz
Tube prices 4 Tube prices (visible for members only)
Information source - - Manufacturers Literature   Frank's tube pages
Universal Vade-Mecum, Electron Valves and Semiconductor Devices   Section 66, p. 89
Taschenbuch zum Röhren-Codex 1948/49
Babani, International Radio Tube Encyclopaedia

dq4_bbc_anwendung.png
DQ4: BBC Röhren Handbuch 1
Aldo Patriarca

dq4_bbc_sockelschema.png DQ4: BBC Handbuch 1
Aldo Patriarca


Just Qvigstad
dq4_dat.png
DQ4: elektron taschenbuch 1952
Heinz Höger

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Collection of

 
bbc_dq4.jpg

DQ4
 

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