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

A40

0 archive entries

BrandMazda
ClassTriode
BaseAcorn
Filament4 V @ 250 mA

Construction

Primary TypeTriode
EnvelopeAcorn
SectionsSingle

Filament / Heater

Absolute Maximum Ratings

Plate Voltage200 V

Audio Performance

Key Features
  • Ultra-short wave operation down to 0.5 metre
  • Small electrode dimensions
  • Extremely short terminal connections

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Class A100 V2000—25—

Application Notes

The triode is suitable for operation as Detector or Oscillator at ultra high frequencies.

Datasheets

Datasheet: A40.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