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ID = 35416
United States of America (USA)
Brand: Western Electric Company Inc.; New York (NY)
Tube type:  Vacuum Pentode 
Identical to 309A

Base UY-Base, 5 Pins (USA, April 1927) Top contact with a cap.
Filament Vf 10 Volts / If 0.32 Ampere / Indirect
Description Variable mu pentode, 1.1 mS Gm. Similar to 39/44. Silver-plated pins. 
Information source Tube Lore (I)   
- - Manufacturers Literature   

309a_pinout.png 309A: From my schematic collection.
Pier Antonio Aluffi

Just Qvigstad
309A: My schematic collection.
Pier Antonio Aluffi

Collection of



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