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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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3CX300A1 vacuum tube outline illustration

Tube-number record

3CX300A1

0 archive entries

3CX300A1 is a tube type in the TubeDatabase archive (class: Audio Power Triode). Recorded specifications: brand Svetlana, construction Triode, maximum plate voltage 1800 V, and maximum plate dissipation 300 W. The archive does not yet hold a photographed example of this type.

BrandSvetlana
ClassAudio Power Triode
Filament6.3 V @ 2.65 mA

Construction

Primary TypeTriode
EnvelopeMetal-ceramic
SectionsSingle

Filament / Heater

Heater NotesUnipotential oxide-coated cathode

Absolute Maximum Ratings

Plate Voltage1800 V

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Class A Audio Amplifier500 V20000450980 mA
Class AB1 Push-Pull500 V———300 mA

Application Notes

Suitable for Class A1 or AB1 service in high-end audio or music amplification.

Datasheets

Datasheet: 3CX300A1.pdf

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

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Manufacturers

Brands

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    Plate Dissipation300 W
    Grid 1 Voltage-400 V
    Cathode Current470 mA
    H-C Voltage100 V

    Audio Performance

    Typical THD0.67%
    Power Output15 W
    Key Features
    • Extremely rugged
    • Linear
    • Metal-ceramic construction
    • External anode