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302

Information - Help 
ID = 18033
       
Country:
Great Britain (UK)
Brand: GEC, General Electric Co Ltd., GENALEX; London
Tube type:  Current Regulator, Iron in Hydrogen   Power-supply 
Identical to 302
Base Edison big E27 = 27 mm
Was used by Radio/TV-reception etc.
Filament If 0.3 Ampere / Direct / Specified voltage AC/DC
Description

Manufactured by the General Electric Company in England. The large version of this tube was made from c. 1935 to 1945. following this a smaller version of the tube was made with a diameter of 55 mm. (see Variant) The smaller tube was also sold with the Philips brand but made by GEC. These tubes were used extensively in ac/dc radios, particularly in Australia and New Zealand.
Voltage range 112-195 for 5% current stability.

 
Text in other languages (may differ)
Dimensions (WHD)
incl. pins / tip		 57 x 125 x mm / 2.24 x 4.92 x inch
Weight 47 g / 1.66 oz
Information source British Radio Valves - The Classic Years: 1926-1946   Supplement, p. 156
Ballast Tube Handbook, The   
- - Manufacturers Literature
Taschenbuch zum Röhren-Codex 1948/49
baretter_e27~~8.png 302: Fin Stewart
Fin Stewart

Just Qvigstad 		302_data.png
302: AWV Radiotron Valve Data Book
Stuart Irwin
More ...
Usage in Models 1= 1937? ; 4= 1937 ; 26= 1938 ; 26= 1939 ; 2= 1940? ; 13= 1940 ; 1= 1941? ; 6= 1941 ; 9= 1946 ; 5= 1947 ; 1= 1948?? ; 3= 1948
Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):97

Collection of

Fin Stewart (AUS)
Stuart Irwin (AUS)
 
302.jpg

302
 

Variants

From 1945 a smaller version of this tube was made with a diameter of 55 mm. The filament of this tube consisted of eight single coiled iron wires mounted vertically and connected in series. The tube was still listed in the Philips "Miniwatt Technical data handbook, 7th edition 1962
Forum contributions about this tube
302
Threads: 1 | Posts: 2
Hits: 3029     Replies: 1
302 (302)
Joachim Glüder
22.Feb.10 		  1
302 (302) 

Hier passt etwas nicht: Während diese Röhre 302 als Widerstandsröhre bezeichnet wird, sollen die verlinkten Äquivalenztypen Sendetrioden sein.

J.G.
Konrad Birkner † 12.08.2014
22.Feb.10 		  2
302 

Schon repariert.                                                                        

Danke,
KOBi
 
302
End of forum contributions about this tube
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