Tube-number record
3CX6000A7 / YU148
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BrandSvetlana
ClassHigh-Mu Power Triode
BaseSpecial / none
Construction
Primary TypeTriode
EnvelopeCeramic/Metal
Base MaterialCoaxial
Sections1
Filament / Heater
MaterialThoriated-tungsten mesh
Absolute Maximum Ratings
Plate Voltage7000 V
Plate Dissipation6000 W
Cathode Current3500 mA
Audio Performance
Key Features
- Modern mesh filament
- Better mechanical rigidity
- Long lasting concentricity
- Superior VHF performance
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Cathode-Driven Class C RF Amplifier (CW or FM) | 4800 V | — | — | 200 | 2300 mA |
| Cathode-Driven Class C RF Amplifier (CW or FM) | 5700 V | — | — | 200 | 2500 mA |
| Cathode-Driven Class C RF Amplifier (CW or FM) | 6000 V | — | — | 200 |
Application Notes
A resonant tank circuit is recommended for grounded-grid operation. In a single-ended circuit the loaded Q should be at least 5.
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