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842

Information - Help 
ID = 15423
       
Country:
United States of America (USA)
Brand:
Developer: General Electric Co. (GE); Bridgeport CT, Syracuse NY 
Tube type:  Triode, vacuum   Power/Output 
Identical to 842 = 38842 = VT-72
First Source (s)
28.Jun.1945 : Electron Tube Registration List rec. 415

Base UX-Base (4 Pins (2 thick, USA 1924, UX) (Codex=Bo)
Was used by Transmittertube (Radio)
Filament Vf 7.5 Volts / If 1.25 Ampere / Direct / Parallel, (AC/DC)
Description

AF power amplifier. Delivers 3W across 8 ohms with 425V anode voltage and 3750 ohms cathode resistor.
First appeared in 1927, was registerd to GE in 1945.

 
Dimensions (WHD)
incl. pins / tip
x 137 x 54 mm / x 5.39 x 2.13 inch
Information source Taschenbuch zum Röhren-Codex 1948/49   
- - Manufacturers Literature   
 
dsc04779.jpg
842: tube collection
Bill Werzner

 
s_217_g_39.gif
842: W.Sprick: Austausch-Röhren-Lexikon 1947
Günther Stabe † 19.8.20

 
842.png
842: RCA de forest amateur 1934
Miguel Angel Trujillo-Rodriguez


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