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ID = 4293
United States of America (USA)
Brand: Common type USA tube/semicond.
Tube type:  Half-Wave Vacuum Rectifier 
Identical to 3AW3
Similar Tubes
Normally replaceable-slightly different:

Base Octal (Int.Octal, IO) K8A, USA 1935 Top contact with a cap.
Filament Vf 3.15 Volts / If 0.22 Ampere / Half indirect
Description High-voltage rectifier, 30KV PIV, 1.7mA average.
GE and Tung Sol known manufacturers. 
Tube prices 1 Tube prices (visible for members only)
Information source Essential Characteristics, GE 1973   
- - Manufacturers Literature   
3AW3: LA
Larry Anderson

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3AW3: RCA Reference Book 1968
Anonymous 10 Collector

3AW3: RCA Tube Manual RC-24
Heinz Höger

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