Tube-number record
304TL
0 archive entries
304TL is a tube type in the TubeDatabase archive (class: Low-Mu Triode). Recorded specifications: brand Eimac, construction Triode, socket 4-pin, maximum plate voltage 3000 V, and maximum plate dissipation 300 W. The archive does not yet hold a photographed example of this type.
BrandEimac
ClassLow-Mu Triode
Base4-pin
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) | 1500 V | 16700 | — | 12 | 1140 mA |
| Class AB2 Modulator (Two Tubes) | 2000 V | 16700 | — | 12 | 1000 mA |
| Class AB2 Modulator (Two Tubes) | 2500 V | 16700 | — | 12 | 900 mA |
| Class AB2 Modulator (Two Tubes) | 3000 V | 16700 | — | 12 | 800 mA |
| Class C Telegraphy (Single Tube) | 1500 V | — | — | — | 665 mA |
| Class C Telegraphy (Single Tube) | 2000 V | — | — | — | 600 mA |
| Class C Telegraphy (Single Tube) | 3000 V | — | — | — | 500 mA |
Application Notes
Intended for use as an amplifier, oscillator or modulator where maximum performance can be obtained at low plate voltage.
Datasheets
Datasheet: 304TL.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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