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Ut-2A7

           
  Tube type:  Pentagrid-Converter (Heptode)   Pentagrid (old) 
Tube ID = 25319
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Identical to Ut-2A7 = 2A7
Similar Tubes Heater different:
 Ut-6A7

Base 7-Pin-Base U7A = small, old, USA
Filament Vf 2.5 Volts / If: 0.8 Ampere / -: Indirect / -: Parallel, (AC/DC) /
Description Japan 
Text in other languages (may differ)
Literature -- Collector info (Sammler)   
Babani, International Radio Tube Encyclopaedia   

xut2a7.jpg
Ut-2A7: KoBi
Konrad Birkner

 
ut2a7_so.png
Ut-2A7: ARRL Handbook 1972
Michael Schlör

 
Usage in Models   1= 1939
Number of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):   1

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