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ID = 3103
United States of America (USA)
Brand: Common type USA tube/semicond.
Tube type:  Beam Power Tube   Power/Output 
Identical to 3Q5G
Similar Tubes
Other shape (e.g. bulb type):
  3Q5 ; 3Q5GT ; DL33 ; VT-221 ; Z8191
First Source (s)
04.Apr.1940 : Electron Tube Registration List

Base Octal (Int.Octal, IO) K8A, USA 1935
Filament Vf 2.8 Volts / If 0.05 Ampere / Direct / Battery =
Description Heater also 1.4V / 0.1A 
Text in other languages (may differ)
Dimensions (WHD)
incl. pins / tip
28 x 84 x mm / 1.10 x 3.31 x inch
Weight 31 g / 1.09 oz

3q5g_so.png 3Q5G: ARRL Handbook 1972
Anonymous 10 Collector

More ...

Just Qvigstad
3Q5G: Manufacturer's Literature
Emilio Ciardiello

Usage in Models 5= 1940 ; 1= 1941? ; 15= 1941 ; 2= 1946

Quantity of Models at with this tube (valve, valves, valvola, valvole, válvula, lampe):23

Collection of



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