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ECH35

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ID = 2492
       
Country:
Great Britain (UK)
Brand:
Developer: Mullard Radio Valve Co. Ltd.;  
Tube type:  Triode-Hexode   Frequency converter   Controlling (mu) 
Identical to ECH35 = ARTH2 = ZA2985 = VR99A = CV1581 = CV1347 = BVA276 = 10E/757
Similar Tubes
Normally replaceable-slightly different:
  BVA275 ; E1348 ; X61M
Heater different:
  6E8G ; 6E8MG ; CCH35 ; ECH33 ; TH62
First year 1939 70 Years of Radiotubes and V.
First Source (s)
1939 : 70 Years of Radiotubes and V.

Base Octal (Int.Octal, IO) K8A, USA 1935 (Codex=Ua) Top contact with a cap.
Was used by Radio/TV-reception etc.
Filament Vf 6.3 Volts / If 0.225 Ampere / Indirect / Specified voltage AC/DC
Tube prices 3 Tube prices (visible for members only)
Information source Babani, International Radio Tube Encyclopaedia   p. 102 & 103
Universal Vade-Mecum, Electron Valves and Semiconductor Devices   Section 328, p. 764
Taschenbuch zum Röhren-Codex 1948/49

ech35.png
ECH35: Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse
Karel De Reus †

oc24_1~~7.png ECH35: RTT 1974 (Franzis) 13. Auflage
Martin Renz


Just Qvigstad
ech35_mullard_data_01.png
ECH35: Mullard - original papers
Detlef Narten

More ...
Usage in Models 1= 1939? ; 1= 1940?? ; 2= 1940? ; 3= 1940 ; 2= 1941? ; 3= 1941 ; 3= 1942?? ; 1= 1943 ; 5= 1944 ; 3= 1945? ; 10= 1945 ; 3= 1946?? ; 9= 1946? ; 79= 1946 ; 3= 1947?? ; 13= 1947? ; 79= 1947 ; 7= 1948?? ; 18= 1948? ; 141= 1948 ; 5= 1949?? ; 22= 1949? ; 68= 1949 ; 5= 1950?? ; 5= 1950? ; 28= 1950 ; 15= 1951? ; 19= 1951 ; 1= 1952? ; 6= 1952 ; 1= 1954? ; 1= 1954 ; 1= 1955?? ; 1= 9999

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):564


Collection of

 
ech35_pic.jpg

ECH35
 

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