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874

Information - Help 
ID = 12091
       
Country:
United States of America (USA)
Brand:
Developer: RCA (RCA Victor Co. Inc.); New York (NY) 
Tube type:  Voltage Regulator, single   Text 
Identical to 874 = 38274 = SE-3918 = CV643 = PT-874 = CX374
Similar Tubes
Other shape (e.g. bulb type):
  UX874

Base UX-Base (4 Pins (2 thick, USA 1924, UX) (Codex=B)
Was used by Radio/TV-reception etc.
Filament
Description

150V stabilized voltage at 10 to 50mA.
Developed in 1925 by RCA and designed for use in RCA 104 amplified speaker. Tube has a safety jumper between pins 2 and 4 to cut off power if tube is unplugged. Useable as a cold cathode rectifier if forward drop can be tolerated.

 
Dimensions (WHD)
incl. pins / tip
x 137 x 54 mm / x 5.39 x 2.13 inch
Weight 59 g / 2.08 oz
Tube prices 3 Tube prices (visible for members only)
Information source Tube Lore (II)   p. 80 & 183
Tube Lore (I)   
Taschenbuch zum Röhren-Codex 1948/49

874_so.png 874: ARRL Handbook 1972
Anonymous 10 Collector

More ...

Just Qvigstad
874.png
874: Manufacturer's Literature
Emilio Ciardiello

Usage in Models 2= 1928? ; 1= 1928 ; 1= 1930?? ; 1= 1935? ; 1= 1943??

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):6

Collection of

 
874_rca_ec.jpg

874
 

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