Tube-number record
3X3000A7
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BrandEimac
ClassHigh-Mu Power Triode
Construction
Primary TypeTriode
EnvelopeExternal Anode
SectionsSingle
Filament / Heater
MaterialThoriated-tungsten
Absolute Maximum Ratings
Plate Voltage5000 V
Plate Dissipation3000 W
Cathode Current2500 mA
Audio Performance
Power Output11000 W
Key Features
- Zero-bias Class-B amplifier
- External-anode
- Thoriated-tungsten filament
- High-mu
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class-B AF Modulator (Two Tubes) | 4000 V | — | — | 200 | 4000 mA |
| Class-B Grounded-Grid RF Linear (Single Tone) | 4000 V | — | — | 200 | 2000 mA |
| Class-B Grounded-Grid RF Linear (Single Tone) | 5000 V | — | — | 200 |
Application Notes
Intended for use as a zero-bias Class-B amplifier in audio or radio-frequency applications. Grounded-grid operation is attractive since a power gain of over twenty times can be obtained.
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