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UX281

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ID = 8317
       
Country:
United States of America (USA)
Brand:
Developer: Westinghouse El. & Mfg. Co. - see also Canadian W. 
Tube type:  Half-Wave Vacuum Rectifier   Power-supply 
Identical to UX281 = CV2546 = PH281 = 481 = CX381 = D1/2 = GSX-281 = ER81 = ER281 = 181_Arcturus = X281 = 1562_UX4-pin = NX-281 = SLX281 = 57T281 = RE-2 = T-81 = PR281 = G81 = R81_USA = AC281 = RayX-281 = RYB281 = PA281 = MX281 = TC281 = SX-281 = TX181 = 81 = C-281 = 281
Similar Tubes
Other shape (e.g. bulb type):
  NU-81
Normally replaceable-slightly different:
  38181 ; 4619_WLS ; G-81 ; PT-281 ; R281 ; WLS581
First year 1927 Radios von gestern, 2. Auflage
First Source (s)
May.1927 : Saga of the Vacuum Tube, Tyne p.323 &325
Successor Tubes SLX281  

Base UX-Base (4 Pins (2 thick, USA 1924, UX) (Codex=Bo)
Was used by Radio/TV-reception etc.
Filament Vf 7.5 Volts / If 1.2 Ampere / Direct / Specified voltage AC/DC
Description

Work on this tube started at the Westinghouse laboratories in Bloomfield, New Jersey early in 1927 and it was announced a few months later

 
Dimensions (WHD)
incl. pins / tip
x 158 x 60 mm / x 6.22 x 2.36 inch
Weight 63 g / 2.22 oz
Information source 70 Years of Radiotubes and V.   p. 111
Tube Lore (II)   p. 28
Taschenbuch zum Röhren-Codex 1948/49
70 Years of Radiotubes and V.

ux281_so.png UX281: ARRL Handbook 1972
Anonymous 10 Collector


Just Qvigstad
ux281_data.png
UX281: RCA Receiving Tube Manual RC-10
Heinz Höger

Usage in Models 3= 1927? ; 14= 1927 ; 5= 1928? ; 28= 1928 ; 2= 1929? ; 18= 1929 ; 4= 1930?? ; 2= 1930 ; 1= 1931?? ; 1= 1931?

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):78


Collection of

 
ux281001.jpg

UX281
 

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