radiomuseum.org
Please click your language flag. Bitte Sprachflagge klicken.

C239

Information - Help 
ID = 22265
       
Country:
United States of America (USA)
Brand: Cunningham Inc., E.T.; Harrison (NJ)
Developer: RCA (RCA Victor Co. Inc.); New York (NY) 
Tube type:  Vacuum Pentode   Audio Frequency 
Identical to C239 = UY239 = 139
Similar Tubes
Other shape (e.g. bulb type):
  39

Base UY-Base, 5 Pins (USA, April 1927) Top contact with a cap.
Was used by Radio/TV-reception etc.
Filament Vf 6.3 Volts / If 0.3 Ampere / Specified voltage AND current AC/DC
Description

The tube in the Cunningham data sheet clearly shows the type number C239. This would have to be an error as Cunningham tubes in the series C330 to C340 (and many others) show the type number as C3--. If any C239 tubes exist, they would be very rare.

 
Dimensions (WHD)
incl. pins / tip
x 118 x 38 mm / x 4.65 x 1.50 inch
Weight 36 g / 1.27 oz
Information source - - Manufacturers Literature   
-- Collector info (Sammler)   

c239_sock.png C239: Cunningham Radio Tubes Manual C-10 1932
Daniel Consales


Just Qvigstad
c239_daten_p1.png
C239: Cunningham Radio Tubes Manual C-10 1932
Daniel Consales

More ...
 

You reach this tube or valve page from a search after clicking the "tubes" tab or by clicking a tube on a radio model page. You will find thousands of tubes or valves with interesting links. You even can look up radio models with a certain tube line up. [rmxtube-en]
  

Data Compliance More Information