TubeDatabase
  • Tubes
  • Testers
  • Companies
  • Submit
  • About

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

Pre (2,630 tube types), Other (2,603 tube types), Power (1,292 tube types), Rectifier (816 tube types)
DisclaimerSubmit a tube

Tube-number record

U54

0 archive entries

BrandMarconi
ClassRectifier
BaseOctal
Filament5 V @ 2.8 mA

Construction

Primary TypeIndirectly heated
Rectifier TypeBi-Phase
EnvelopeDome top tubular
Sections2

Filament / Heater

Heater NotesIndirectly heated

Absolute Maximum Ratings

Plate Voltage500 V
Cathode Current250 mA

Audio Performance

Key Features
  • Indirectly heated
  • Bi-phase rectifier
  • Dome top tubular bulb

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Capacitor input500 V———250 mA

Filters

0 tubes found

Manufacturers

Brands

    0 results