TubeDatabase
  • Tubes
  • Testers
  • Companies
  • Submit
  • About

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)
DisclaimerSubmit a tube

Tube-number record

BU1-5/20

0 archive entries

ClassPulse Rectifier Tube
Filament6.3 V @ 2600 mA

Construction

Primary TypeRectifier
Envelopeglass
SectionsSingle

Filament / Heater

Warm-up Time55s
Heater NotesIndirectly heated, oxide-coated cathode

Absolute Maximum Ratings

Plate Voltage20000 V
Plate Dissipation33 W
Cathode Current50 mA

Audio Performance

Key Features
  • High-voltage
  • Pulsed operation
  • Indirectly heated
  • Glass envelope

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Initial Pulse Operation————150 mA

Filters

0 tubes found

Manufacturers

Brands

    0 results