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301

Information - Help 
ID = 18032
       
Country:
Europe
Brand: Common type Europe tube/semicond.
Tube type:  Current Regulator, Iron in Hydrogen   Power-supply 
Identical to 301
First year 1930 Tube leaflet collection E.Erb Analysis by original leaflets
Base Edison big E27 = 27 mm
Was used by Radio/TV-reception etc.
Filament If 0.3 Ampere
Description

Manufactured by the General Electric Group Europe.
Voltage range 138-221, for current within 5% of nominal.

 
Text in other languages (may differ)
Dimensions (WHD)
incl. pins / tip		 57 x 125 x mm / 2.24 x 4.92 x inch
Information source British Radio Valves - The Classic Years: 1926-1946   Supplement, p. 156 (Marconi Osram)
Ballast Tube Handbook, The   
- - Manufacturers Literature
Taschenbuch zum Röhren-Codex 1948/49
baretter_e27~~7.png 301: Fin Stewart
Fin Stewart

Just Qvigstad 		barretters~~2.png
301: own collection
Peter den Boer
Usage in Models 1= 1934 ; 3= 1935 ; 4= 1936 ; 2= 1938 ; 2= 1939 ; 1= 1940
Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):13

Collection of

Gil Silva (P)
 
301.jpg

301
 
Forum contributions about this tube
301
Threads: 1 | Posts: 1
Hits: 1041     Replies: 0
301 Ballast tube
John Dodgshun
26.Dec.19 		  1
301 Ballast tube 

The 301 ballast tube has a standard E27 Edison screw base.
 
301
End of forum contributions about this tube
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