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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)
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3D21A vacuum tube outline illustration

Tube-number record

3D21A

0 archive entries

3D21A is a tube type in the TubeDatabase archive (class: Beam Power Pentode). Recorded specifications: construction Pentode. The archive does not yet hold a photographed example of this type.

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

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

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