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Tube Database (7,341 tube types · 1,270 archive entries)

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ECC803 vacuum tube outline illustration

Tube-number record

ECC803

1 archive entry

ECC803 is a tube type in the TubeDatabase archive (class: A. F. twin triode). Recorded specifications: brand JJ Electronic, construction Triode, socket Noval (B9A), maximum plate voltage 330 V, and maximum plate dissipation 1.2 W. The archive holds 1 photographed example of this type.

BrandJJ Electronic
ClassA. F. twin triode
BaseNoval (B9A)
Filament6.3 V @ 300 mA

Construction

Primary TypeTriode
Envelopeglass
Sectionstwin

Filament / Heater

Absolute Maximum Ratings

Plate Voltage330 V
Plate Dissipation1.2 W

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Typical characteristic250 V1600625001001.2 mA

Application Notes

Resistance - coupled amplifier operation: Ub=250V, Ra values 47k, 100k, 220k.

Datasheets

Datasheet: ECC803.pdf

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

Filters

1 tube found

Manufacturers

Brands

Chelmer1
Grid 1 Voltage
-55 V
Cathode Current9 mA
H-C Voltage200 V

Audio Performance

Key Features
  • separate cathodes
  • non microphonic
  • Chelmer ECC803 tube — photo 1 of 3
    Chelmer ECC803 tube — photo 2 of 3
    Chelmer ECC803 tube — photo 3 of 3

    Use the Left and Right Arrow keys to browse photos. Use Home for the first photo and End for the last photo.

    Photo 1 of 3

    ECC803

    Brand
    Chelmer
Showing 1–1 of 1 results