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28Z5

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ID = 5720
       
Country:
United States of America (USA)
Brand: Common type USA tube/semicond.
Developer:  
Tube type:  Full-Wave Vacuum Rectifier   Power-supply 
Identical to 28Z5
Similar Tubes
Heater different:
  7Z4
First Source (s)
01.Oct.1942 : Electron Tube Registration List 307
Predecessor Tubes 7Z4  
Base Loctal-8, B8G (Sylvania, 1938) (Codex=Wi)
Filament Vf 28 Volts / If 0.24 Ampere / Indirect / Specified voltage AC/DC
Description

325V rms per plate, 100mA dc output current.
Center-tapped heater.

 
Information source Essential Characteristics, GE 1973   
Taschenbuch zum Röhren-Codex 1948/49   
28z5.png
28Z5: Internet
Miguel Angel Trujillo-Rodriguez
585.png 28Z5: Telefunken Werkstattbuch
Wolfgang Bauer

Just Qvigstad 		28z5_techdat01.png
28Z5: Sylvania Technical Manual
Peter Hoddow
 
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