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

R20

0 archive entries

BrandBRIMAR
ClassHigh voltage, half-wave rectifier
BaseNoval (B9A)
Filament2 V @ 350 mA

Construction

Primary TypeRectifier
Rectifier TypeHalf-wave
EnvelopeGlass
Base MaterialB9A
SectionsSingle

Filament / Heater

Heater NotesHeater current: 0.35A (350mA)

Absolute Maximum Ratings

Plate Voltage22000 V
Cathode Current0.8 mA

Audio Performance

Key Features
  • Television line flyback EHT rectifier
  • B9A Base
  • CT1 Cap

Application Notes

X-ray shielding is advisable for protection against possible danger of personal injury at PIV in excess of 16 kV. Pins 3 and 7 may be connected to points in the heater circuit only and must not be earthed. No low potential circuits should be connected to any base pins.

Datasheets

Datasheet: R20.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