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A_Nelson

Informazioni - Aiuto 
ID = 28371
       
Stato:
Gran Bretagna (Regno Unito)
Produttore: Nelson Electric Co. Ltd.; London
Progettista: Nelson Electric Co. Ltd.; London 
Tipo:  Triodo a vuoto   Audio Frequency 
  Ca. 1925 up to 1945 very rare. ***
Identico a A_Nelson
Valvole simili
Heater different:
  DE06_Nelson
Prime serie 1926 Saga of the Vacuum Tube, Tyne Seite 393

Zoccolo Europe 4-Pin B4 (Eu A, E, 4A) 1914
Utilizzata per Radio/TV-reception etc.
Filamento Vf 4 Volt / If 0.45 Ampere / Direct / Battery =
Descrizione

Manufacturer's data states 0.45A for each of the three filaments.

See Tyne page 393: In 1926 Nelson Electric Co. Ltd. brought 4 different "Multivalves" to the market, designated A, DEA, DE2 and DE.06 (D.E.06. DE06). All of them have three filaments, controlled by a "scisors switch" at the bottom of the base. Any one of the three filaments could be used in case of an open heater. Opening the switch put two of the filaments in parallel, thus making it a power valve. The valves show two round labels on the glass side: a trade mark "Nelson Multi" with a picture of Lord Nelson. On the other side there is a label "Entirely British Manufactured" and in the center BBC. The banderole shows type and values of the heater.

 
Testo in altre lingue (può variare)
Dimensioni
(LxAxP)
incl.pins/tip
38 x 108 x 38 mm / 1.50 x 4.25 x 1.50 inch
Peso 55 g / 1.94 oz
Bibliografia Wireless World (The), London (WW, 79)   Jan 20 1926 Advertisement p23


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nelson_a_bild1.jpg

A_Nelson
 

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