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

3D21A

0 archive entries

ClassBeam Power Pentode

Construction

Primary TypePentode

Filament / Heater

Absolute Maximum Ratings

Audio Performance

Application Notes

Updated selector settings for TV-7 test sets.

Datasheets

Datasheet: 3D21A.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