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UX171

Information - Help 
ID = 3611
       
Country:
United States of America (USA)
Brand:
Developer: General Electric for Brand RCA-Radiotron; Bridgeport CT, Syracuse NY 
Tube type:  Triode, vacuum   Power/Output 
Identical to UX171 = 71 = CX71A = D471_deForest = 071 = GSX-171 = CF571 = CX171 = MX171 = 57T171 = DC-171 = X171 = SE-4171 = CG38071 = 271 = R171 = DC171 = Z171 = T.H.T.171 = SLX171 = PA171 = AC71 = 171
Similar Tubes
Other shape (e.g. bulb type):
  DP71
Normally replaceable-slightly different:
  2968 ; C-171 ; C-182A ; CA171 ; D471 ; DL14 ; DL14_deForest ; J71 ; SX171 ; WLS571
Heater different:
  CX371A ; UX171A ; X-171A
First year 25.Oct.1925 - - Manufacturers Literature October 1925 RCA used but only 1926 for others.
First Source (s)
1926 : Saga of the Vacuum Tube, Tyne p.315,316
Successor Tubes UX171A  
Base UX-Base (4 Pins (2 thick, USA 1924, UX) (Codex=Bo)
Was used by Radio/TV-reception etc.
Filament Vf 5 Volts / If 0.5 Ampere / Direct / Specified voltage AC/DC
Description

Tyne page 315: Design started early 1925, adopted by RCA in October 1925 but available only at June 1926, replaced in November 1926 by the UX171A (oxide-coated filament). The UX171 has a thoriated tungsten filament, operating at 5 volts and 0.5 ampere. Delivers 0.7 watt output (plate dissipation) at the maximum recommended anode voltage of 180 volts.

 
Dimensions (WHD)
incl. pins / tip		 x 108 x 45 mm / x 4.25 x 1.77 inch
Weight 47 g / 1.66 oz
Information source Taschenbuch zum Röhren-Codex 1948/49   
uxsockel_6.png UX171: KoBi
Konrad Birkner † 12.08.2014

Just Qvigstad 		ux171.png
UX171: own collection
Peter den Boer
More ...
Usage in Models 1= 1925? ; 6= 1925 ; 20= 1926 ; 22= 1927 ; 1= 1928?? ; 2= 1928? ; 10= 1928 ; 1= 1929? ; 3= 1929 ; 2= 1930?? ; 1= 1930
Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):69

Collection of

Konrad Birkner † 12.08.2014 (D)
 
rca_ux171.jpg

UX171
 
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