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231

Information - Hilfe 
ID = 15330
       
Land:
USA
Marke:
Entwickler: RCA (RCA Victor Co. Inc.); New York (NY) 
Typ:  Triode (Hoch-) Vakuum   Endstufe 
Identisch mit 231 = CX331 = ER31 = ER231 = NX-231 = C-231 = NU-31 = 31 = UX231 = 131 = 431
Erste Quelle(n)
1930 : Saga of the Vacuum Tube, Tyne p.329,330
Jun.1930 : Electronics p. 122
Sockel USA-UX-4-Stift-Sockel (2 dick), ab 1924 (Codex=Bo)
Anwender Radio/TV-Empfang etc.
Heizung Uf 2 Volt / If 0.13 Ampere / Direkt / Batterieheizung =
Beschreibung

The tube UX230 (230, 30) was announced by RCA in June 1930. This is according to "Saga of the Vacuum Tube" by Tyne, pages 329 & 330. Also announced in "Electronics" in June 1930. In its original form, the 230 has a tubular "T9" bulb. During its commercial life, the bulb shape was changed to S12 and later ST12. Some tubes (such as Silvertone) were made with the ST14 bulb.

 
Sammlerpreise 1 Sammlerpreise (nur sichtbar für Mitglieder Radiomuseum.org)
Literatur Taschenbuch zum Röhren-Codex 1948/49   
s_217_g_14.gif 231: W.Sprick: Austausch-Röhren-Lexikon 1947
Günther Stabe † 19.8.20
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Just Qvigstad
Verwendung in Modellen 4= 1930 ; 3= 1931 ; 1= 1932?? ; 1= 1934?? ; 1= 1934
Anzahl Modelle bei Radiomuseum.org bestückt:10

Sammlung von

Joachim Haas (D)
Robert Gillespie (USA)
 
screenshot_20210206_154610_gallery.jpg

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