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C347

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ID = 22269
       
Country:
United States of America (USA)
Brand: Cunningham Inc., E.T.; Harrison (NJ)
Tube type:  Vacuum Pentode   Power/Output 
Identical to C347 = ER247 = 447 = Y-247 = NY-247 = RX247 = C-47 = RYB247 = UY647 = CL-47 = TS247 = 47
Similar Tubes
Other shape (e.g. bulb type):
  NU-47
Normally replaceable-slightly different:
  R247
Base UY-Base, 5 Pins (USA, April 1927)
Was used by Radio/TV-reception etc.
Filament Vf 2.5 Volts / If 1.75 Ampere / Direct / Specified voltage AC/DC
Tube prices 1 Tube prices (visible for members only)
c347_sock.png C347: Cunningham Radio Tubes Manual C-10 1932
Daniel Consales

Just Qvigstad 		c347_daten_p1.png
C347: Cunningham Radio Tubes Manual C-10 1932
Daniel Consales
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Collection of

Jay Vonderhey (USA)
Alexander Hofer (A)
Karlheinz Fischer (D)
 
c_347.jpg

C347
 
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