Tube-number record
3CX300A1
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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
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
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class A Audio Amplifier | 500 V | 20000 | 450 | 9 | 80 mA |
| Class AB1 Push-Pull | 500 V | — | — | — | 300 mA |
Application Notes
Suitable for Class A1 or AB1 service in high-end audio or music amplification.
Datasheets
Datasheet: 3CX300A1.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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