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CX340

Information - Help 
ID = 22247
       
Country:
United States of America (USA)
Brand: Cunningham Inc., E.T.; Harrison (NJ)
Tube type:  Triode, vacuum   Audio Frequency 
Identical to CX340 = UX240 = ER240 = 440 = X240 = G_CeCo = PA240 = 240 = SLX240 = MX240 = TC240 = RayX-240
Similar Tubes
Normally replaceable-slightly different:
  PJ-11 ; PT-240

Base UX-Base (4 Pins (2 thick, USA 1924, UX)
Was used by Radio/TV-reception etc.
Filament Vf 5 Volts / If 0.25 Ampere
Description

This tube is a specially designed type for resistance coupled amplification. It has an amplifying factor about 4 times that of the CX301A (UX201A)

 
Dimensions (WHD)
incl. pins / tip
x 108 x 45 mm / x 4.25 x 1.77 inch
Weight 47 g / 1.66 oz
 
cx_340.png
CX340: R.O.
Rudolf Osterkamp

 
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CX340: Fin Stewart
Fin Stewart

 
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CX340: Cunningham Radio Tubes Manual C-10 1932
Daniel Consales


from Just Qvigstad

Usage in Models 1= 1926 ; 1= 1927

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):2


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