3CX15,000H3 - 15 KW MEDIUM MU POWER TRIODE 3CX15,000H3 - 15 KW MEDIUM MU POWER TRIODE
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3CX15,000H3 - 15 KW MEDIUM MU POWER TRIODE

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The Penta Labs 3CX15,000H3 is a rugged, air-cooled triode vacuum tube designed for the most challenging radio frequency (RF) environments. This powerhouse tube delivers exceptional power and reliability for high-output broadcasting systems and industrial RF heating processes. A cost-efficient drop-in replacement for tubes from manufacturers like EIMAC, the 3CX15000H3 offers best-in-class quality and value. 

Key Features and Benefits

  • Robust Design: Built for heavy-duty industrial use, ensuring long-lasting performance.
  • Air-Cooled Efficiency: Forced-air cooling maintains optimal operating temperatures, even under demanding conditions.
  • High-Power Handling: 56.2 kW input capability up to 90 MHz for power-hungry applications.
  • Ample Emission Reserve: 1000-watt filament provides generous emission reserves for extended performance.
  • Rugged Grid Structure: 500-watt grid rating ensures stability and reliability in industrial environments.
  • Cost-Effective Replacement: A high-quality, affordable drop-in replacement for EIMAC and other comparable tubes.

3CX15000H3 Transmitter Tube Specifications

General Characteristics

  • Filament: Thoriated Tungsten
  • Filament Voltage: 6.3V ± 0.3V
  • Filament Current at 6.3V: 156A
  • Amplification Factor (Average): 20
  • Frequency of Maximum Ratings (CW): 90 MHz

Mechanical Characteristics

  • Overall Dimensions: Length (Excluding Leads): 8.75 inches (222.25mm), Diameter: 7.05 inches (179.07mm)
  • Maximum Operating Temperature: 250°C
  • Cooling: Forced Air

Maximum Ratings (Class C - Filtered DC Power Supply)

  • DC Anode Voltage: 12kV
  • DC Grid Voltage: -1000V
  • DC Anode Current: 6.0A
  • DC Grid Current: 1.0A
  • Anode Input Power: 60kW
  • Anode Dissipation: 15kW

Typical Operation (Loaded Conditions)

  • DC Anode Voltage: 7000-10,000V
  • DC Anode Current: 6.0-5.0A
  • DC Grid Voltage: -600 to -800V
  • DC Grid Current: 0.660-0.542A
  • Peak Positive Grid Voltage: 440-400V
  • Driving Power: 660-650W
  • Anode Input Power: 42-50kW
  • Anode Dissipation: 12-8.8kW
  • Anode Output Power: 30-41.2kW

Common OEM RF Welding Machines Using the 3CX15,000H3

  • Thermex-Thermatron
  • Cosmos-Kabar
  • Hall Dielectric
  • Miller Weldmaster
  • Zemat RF Welding
  • Forsstrom
  • Fiab RF Welding Machines

Why Choose Penta Laboratories Power Triodes?

Penta Laboratories is renowned for manufacturing high-quality, dependable, and affordable power triodes for various industrial and scientific applications. Our products are engineered for optimal performance, longevity, and reliability. Many of our power triodes are trusted by leading original equipment manufacturers for new and refurbished production.


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