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ID = 33408
United States of America (USA)
Brand: United Electronics Corp., Newark 4, N.J.
Developer: RCA (RCA Victor Co. Inc.); New York (NY) 
Tube type:  Full-Wave Vacuum Rectifier   Power-supply 
Identical to 596
Similar Tubes
Multiple differences or of other kind:

Base UX-Base (4 Pins (2 thick, USA 1924, UX) 2 Top contacts
Was used by Technology / Measurement
Filament Vf 5 Volts / If 3 Ampere / Direct

High-rel, high altitude (60000ft) version of 1641, full wave rectifier. 2.3KV PIV, 275mA average current. Designed and manufactured by United Electronics.
The reference to RCA as developer is wrong.

Literature - - Manufacturers Literature   
Tube Lore   
596: Collection JR
Jacob Roschy

596: ARRL Handbook 1972
Michael Schlör


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