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ID = 20340
United States of America (USA)
Brand: Common type USA tube/semicond.
Tube type:  Transmitting Triode, air cooled 
Identical to VT-52 = 2C45 = 45spec = CV596
Similar Tubes
Normally replaceable-slightly different:
Predecessor Tubes 45  

Base UX-Base (4 Pins (2 thick, USA 1924, UX)
Filament Vf 7 Volts / If 1.18 Ampere / Direct
Description Slang-designation "45 special". Transmitting triode with the electrode structure derived from the standard 45.
Made by National Union under Wester Electric contract for BC-230/430 aircraft radio sets. Also distributed by Hytron. 
Text in other languages (may differ)
Information source Tube Lore (I)   
VT-52: aus ebay, Verkäufer uncle-papa
Gottfried Silberhorn

More ...
VT-52: ARRL Handbook 1972
Anonymous 10 Collector


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