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Tube Database (7,341 tube types · 1,270 archive entries)

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Tube-number record

304TL

0 archive entries

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

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Class AB2 Modulator (Two Tubes)1500 V16700—121140 mA
Class AB2 Modulator (Two Tubes)2000 V16700—121000 mA
Class AB2 Modulator (Two Tubes)2500 V16700—12

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

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Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.

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    900 mA
    Class AB2 Modulator (Two Tubes)3000 V16700—12800 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