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Tube Database (7,341 tube types · 1,270 archive entries)

Other (3,257 tube types), Pre (2,314 tube types), Power (1,030 tube types), Rectifier (740 tube types)
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Tube-number record

EZ12

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BrandVEB RÖHRENWERK ANNA SEGHERS
ClassFull-wave rectifier
BaseDIN 41509
Filament6.3 V @ 900 mA

Construction

Primary TypeRectifier
Rectifier TypeFull-wave
EnvelopeGlass
Base MaterialMetal/Glass
SectionsDouble diode

Filament / Heater

Heater NotesIndirectly heated

Absolute Maximum Ratings

Plate Voltage500 V
Cathode Current125 mA
H-C Voltage550 V

Audio Performance

Key Features
  • Zweiweggleichrichter
  • Indirekt geheizt

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Full-wave rectification (High Voltage)500 V———100 mA
Full-wave rectification (Standard)400 V———125 mA

Application Notes

Condition for 400V to 500V range: 2 x Uzr x L. S = 100,000 mw. Total series resistance consists of Ra + RL + R min.

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