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SE-1444_Moorhead

Informazioni - Aiuto 
ID = 28780
       
Stato:
USA (Stati Uniti d'America)
Produttore: Moorhead Laboratories (Pacific); San Francisco
Progettista: Moorhead Laboratories (Pacific); San Francisco 
Tipo:  Triodo a vuoto   Audio Frequency 
  <1925 rare
Identico a SE-1444_Moorhead = A_Moorhead = VT
Valvole simili
Sostituita normalmente - piccola diff.:
  A_Moorhead-spherical
Prime serie 1918 Saga of the Vacuum Tube, Tyne page 170.

Zoccolo UV-Base (4 Pins+Bayonet, USA 1914 WE)
Utilizzata per Militaire et/ou Services Publics
Filamento Vf 4 Volt / If 0.7 Ampere / Direct / Battery =
Descrizione

When the British VT-32 was equipped with the American four-pin base and vertical element assembly and another glass, it was used by the US Navy in the World War I under the designation SE-1444. Some of the SE-1444 tubes have clear glass, others are reddish in color, which may be the cause of a phosphorus getter or an magnesium getter. The base on the earlier tubes was made by the Shaw Insulator Company, who were associated with Moorhead Laboratories. Late versions of this tube had porcelain insulation in the base.

 
Testo in altre lingue (può variare)
Dimensioni
(LxAxP)
incl.pins/tip
44 x 106 x 35 mm / 1.73 x 4.17 x 1.38 inch
Quotazioni 2 Quotazioni (visibili solo per gli associati)
Bibliografia Saga of the Vacuum Tube, Tyne   page 126, 170-172

2a_uv4.png SE-1444_Moorhead: own collection
Peter den Boer † 2025


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