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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

G 20/40I

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BrandAEG
ClassMercury-vapour Hot-cathode Rectifier
Filament5 V @ 20000 mA

Construction

Primary TypeRectifier
Rectifier TypeMercury Vapour
EnvelopeGlass
SectionsSingle

Filament / Heater

Heater NotesIndirectly heated (indirekt geheizt)

Absolute Maximum Ratings

Plate Voltage20000 V
Cathode Current12000 mA

Audio Performance

Key Features
  • Quecksilberdampffüllung (Mercury-vapour)
  • Indirectly heated cathode
  • Vertical mounting position (base down)

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Rectifier Operation—————

Application Notes

Maximum permissible ambient temperature can reach +40° C in natural air flow.

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