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

4 Q 025-3

0 archive entries

BrandVEB WERK FÜR FERNSEHELEKTRONIK BERLIN
ClassHigh-voltage half-wave rectifier
BaseSpecial / none

Construction

Primary TypeRectifier
Rectifier TypeHalf-wave
EnvelopeGlass
SectionsSingle

Filament / Heater

MaterialOxide-coated
Warm-up Time120s

Absolute Maximum Ratings

Plate Voltage10000 V
Cathode Current250 mA

Audio Performance

Key Features
  • Mercury-vapor filled
  • Directly heated oxide cathode

Datasheets

Datasheet: 4Q025-3.pdf

Download PDF
Loading datasheet...

Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.

Filters

0 tubes found

Manufacturers

Brands

    0 results