304TL
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BrandEimac
ClassLow-Mu Triode
BaseSpecial 4 pin, No. 5000B
Construction
Primary Typetriode
EnvelopeGlass
SectionsSingle
Filament / Heater
MaterialThoriated tungsten
Absolute Maximum Ratings
Plate Voltage3000 V
Plate Dissipation300 W
Cathode Current900 mA
Audio Performance
Power Output1800 W
Key Features
- Low-mu power triode
- Radiation cooled plate
- Visible red color at max dissipation
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class AB2 Modulator (Two Tubes) | 1500V | 16700 | - | 12 | 1140mA |
| Class AB2 Modulator (Two Tubes) | 2000V | 16700 | - | 12 | 1000mA |
| Class AB2 Modulator (Two Tubes) | 2500V | 16700 | - | 12 | 900mA |
| Class AB2 Modulator (Two Tubes) | 3000V | 16700 | - | 12 | 800mA |
| Class C Telegraphy (Single Tube) | 1500V | - |
Application Notes
Intended for use as an amplifier, oscillator or modulator where maximum performance can be obtained at low plate voltage.
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