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48_Arcturus

Information - Hilfe 
ID = 21255
       
Land:
USA
Marke: Arcturus Radio Tube Co.; Newark, NJ
Entwickler: Arcturus Radio Tube Co.; Newark, NJ 
Typ:  Triode (Hoch-) Vakuum 
Identisch mit 48_Arcturus = AC-48 = RA-1

Sockel USA-UX-4-Stift-Sockel (2 dick), ab 1924
Anwender Radio/TV-Empfang etc.
Heizung Uf 15 Volt / If 0.35 Ampere / Halbindirekt / Spezifizierte Spannung ~ =
Beschreibung Special indirectly heated tube from 1928 with one end of the 15 volt AC heater connected internally to the cathode. The result was an AC tube with a standard 4 pin base which could be used to "electify" battery receivers. There were 7 tubes in the 15 volt series with numbers running from AC22 to AC48. Arcturus did not use the "AC" prefix on the tube numbers in their ads, but the earliest production tubes were so marked on their bases. See also Sonora RA-1 = AC48 or 48. 
Literatur Taschenbuch zum Röhren-Codex 1948/49   

ac_26_28_32_40_48_ra1_so1~~10.png 48_Arcturus: Fin Stewart
Fin Stewart


Just Qvigstad

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