radiomuseum.org

2S/4S

Information - Aide 
ID = 43957
       
Pays:
Etats-Unis
Fabricant:
Type:  Double Diode   Detector 
Identique à 2S/4S
Similaires
Remplaçants avec petites différences :
  2S ; 4S
Culot UY-Base, 5 Pins (USA, April 1927)
Utilisé par Radio/TV-reception etc.
Chauffage Vf 2.5 Volt / If 1.35 Ampère / Indirect / Specified voltage AND current AC/DC
Description

Replacement type for Grigsby Grunow (Majestic) types 2S and 4S. Tubes were only made by National Union, Raytheon and Sylvania. These manufacturers used sheet metal shields, probably "Goat" brand, rather than the sprayed types made by Grigsby Grunow. After this company closed, these tubes continued to be made for a couple of years by the other companies mentioned above. href=http://www.radiomuseum.org/tubes/tube_g2.html "target="blank">G2 andG4

 
Texte dans d'autres langues (peut différer)
Dimensions
(l x h x p)
incl.pins/tip		 x 103 x 38 mm / x 4.06 x 1.50 inch
Poids 34 g / 1.20 oz
Bibliographie Babani, International Radio Tube Encyclopaedia   p. 6 & 7
Babani, International Radio Tube Encyclopaedia   
Taschenbuch zum Röhren-Codex 1948/49
Röhrencodex , Röhren-Taschenbuch 1950 23000 Röhren
2s_4s.png 2S/4S: From my schematic collection.
Pier Antonio Aluffi

Just Qvigstad 		2s4sreduitdoc.png
2S/4S: Babani 1949-1951
Patrice Zeissloff

Collection de

David Erali (USA)
 
raytheon_2s_4s_bm.jpg

 
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