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575A

Information - Help 
ID = 5817
       
Country:
United States of America (USA)
Brand: Common type USA tube/semicond.
Developer: Amperex; New York 
Tube type:  Half-Wave Mercury-Vapor Rectifier   Power-supply 
Identical to 575A = VT-187 = F575A = WL-575A
Similar Tubes
Normally replaceable-slightly different:
  875A
Multiple differences or of other kind:
  SS-575A

Base Jumbo 4-pin bayonet (1918) Top contact with a cap.
Filament Vf 5 Volts / If 10 Ampere / Direct
Description

15 KV PIV, 2.5 A average, 10 A peak, 10 V typical voltage drop.

Glass bulb evolved from early spherical shape to stepped tubular.

 
Information source Essential Characteristics, GE 1973   
Taschenbuch zum Röhren-Codex 1948/49   
 
usa_575a_tube.jpg
575A: My collection
Hank Kaczmarski

 
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575A: ARRL Handbook 1972
Michael Schlör

 
575a.png
575A: RCA Transmitting Tubes TT-5
Emilio Ciardiello


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