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HL41DD

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ID = 14316
       
Country:
Great Britain (UK)
Brand: Mazda = Valve (Tube) brand GB (see also France)
Tube type:  Double Diode-Triode   Audio Frequency 
Identical to HL41DD
Similar Tubes
Other base and data slightly different:
  ABC1
Base Octal-8 GB, (Mazda), K8B, MO (Codex=Vg) Top contact with a cap.
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 0.65 Ampere / Indirect / Specified voltage AC/DC
Information source Taschenbuch zum Röhren-Codex 1948/49   
621.png HL41DD: Telefunken Werkstattbuch
Wolfgang Bauer

Just Qvigstad 		hl41dd_mazda_data_01.png
HL41DD: Original data sheet
Michael Poll
More ...
Usage in Models 19= 1938 ; 1= 1939? ; 9= 1939 ; 4= 1940 ; 1= 1941 ; 2= 1945? ; 1= 1945 ; 1= 1946?? ; 6= 1946 ; 1= 1947?? ; 6= 1947? ; 4= 1947 ; 7= 1948 ; 4= 1949 ; 1= 1950
Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):67

Collection of

Collection of a member from D
Jose Luis Villabona Horreo (E)
Robert Gillespie (USA)
Christian ADAM (F)
Jozef Brughmans † (B)
 
hl41dd_rm1.jpg

HL41DD
 
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