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28_Arcturus

Information - Hilfe 
ID = 56020
       
Land:
USA
Marke: Arcturus Radio Tube Co.; Newark, NJ
Entwickler: Arcturus Radio Tube Co.; Newark, NJ 
Typ:  Triode (Hoch-) Vakuum   Niederfrequenz 
  Ca. 1925 bis 1945, aber selten.
Identisch mit 28_Arcturus = AC-28

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. This tube has a carbon filament and was operated by a 15 volt AC transformer, which were used mainly by toy train manufacturers.

 
Abmessungen (BHT)
inkl. Stifte/Spitzli
45 x 120 x 35 mm / 1.77 x 4.72 x 1.38 inch
Gewicht 53 g / 1.87 oz

ac_26_28_32_40_48_ra1_so1~~7.png 28_Arcturus: Fin Stewart
Fin Stewart


Just Qvigstad

Sammlung von

 
screenshot_20230530_201709_gallery.jpg

28_Arcturus
 

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