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Eimac 4-1000A / 8166 Radial Beam Power Tetrode Used Original Box Serial # 7N1291

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MPN:
4-1000A
Condition:
Used
Shipping:
$35.00 (Fixed Shipping Cost)
  • Eimac 4-1000A / 8166 radial-beam power tetrode, used, in original box. Serial 7N12918, 1000-watt plate dissipation, 6000 V maximum plate voltage, 7.5 V filament at approximately 21 A. Capable of efficient operation to 110 MHz with forced-air cooling. Classic tube for homebrew HF linear amplifiers, grounded-grid service, Class AB modulators, commercial broadcast transmitters, and industrial RF applications. Original Eimac box included. Suitable as a working replacement or spare for amplifiers still in service. Condition is used
  • Eimac 4-1000A / 8166 radial-beam power tetrode, used, in original box. Serial 7N12918, 1000-watt plate dissipation, 6000 V maximum plate voltage, 7.5 V filament at approximately 21 A. Capable of efficient operation to 110 MHz with forced-air cooling. Classic tube for homebrew HF linear amplifiers, grounded-grid service, Class AB modulators, commercial broadcast transmitters, and industrial RF applications. Original Eimac box included. Suitable as a working replacement or spare for amplifiers still in service. Condition is used
  • Eimac 4-1000A / 8166 radial-beam power tetrode, used, in original box. Serial 7N12918, 1000-watt plate dissipation, 6000 V maximum plate voltage, 7.5 V filament at approximately 21 A. Capable of efficient operation to 110 MHz with forced-air cooling. Classic tube for homebrew HF linear amplifiers, grounded-grid service, Class AB modulators, commercial broadcast transmitters, and industrial RF applications. Original Eimac box included. Suitable as a working replacement or spare for amplifiers still in service. Condition is used
  • Eimac 4-1000A / 8166 radial-beam power tetrode, used, in original box. Serial 7N12918, 1000-watt plate dissipation, 6000 V maximum plate voltage, 7.5 V filament at approximately 21 A. Capable of efficient operation to 110 MHz with forced-air cooling. Classic tube for homebrew HF linear amplifiers, grounded-grid service, Class AB modulators, commercial broadcast transmitters, and industrial RF applications. Original Eimac box included. Suitable as a working replacement or spare for amplifiers still in service. Condition is used
  • Eimac 4-1000A / 8166 radial-beam power tetrode, used, in original box. Serial 7N12918, 1000-watt plate dissipation, 6000 V maximum plate voltage, 7.5 V filament at approximately 21 A. Capable of efficient operation to 110 MHz with forced-air cooling. Classic tube for homebrew HF linear amplifiers, grounded-grid service, Class AB modulators, commercial broadcast transmitters, and industrial RF applications. Original Eimac box included. Suitable as a working replacement or spare for amplifiers still in service. Condition is used
  • Eimac 4-1000A / 8166 radial-beam power tetrode, used, in original box. Serial 7N12918, 1000-watt plate dissipation, 6000 V maximum plate voltage, 7.5 V filament at approximately 21 A. Capable of efficient operation to 110 MHz with forced-air cooling. Classic tube for homebrew HF linear amplifiers, grounded-grid service, Class AB modulators, commercial broadcast transmitters, and industrial RF applications. Original Eimac box included. Suitable as a working replacement or spare for amplifiers still in service. Condition is used
$199.99
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Description

Eimac 4-1000A / 8166 Radial Beam Power Tetrode Used Original Box Serial # 7N12918  1967 Date Code

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Eimac 4-1000A / 8166 radial-beam power tetrode, used, in original box. Serial 7N12918, 1000-watt plate dissipation, 6000 V maximum plate voltage, 7.5 V filament at approximately 21 A. Capable of efficient operation to 110 MHz with forced-air cooling. Classic tube for homebrew HF linear amplifiers, grounded-grid service, Class AB modulators, commercial broadcast transmitters, and industrial RF applications. Original Eimac box included. Suitable as a working replacement or spare for amplifiers still in service. Condition is used
 
Specifications
  • Type: Radial-beam power tetrode
  • EIA type: 8166
  • Plate dissipation: 1000 W
  • Maximum plate voltage: 6000 V
  • Filament: 7.5 V at approximately 21 A (thoriated tungsten)
  • Amplification factor: approximately 6–8 (depending on connection)
  • Maximum frequency: 110 MHz (efficient operation well into VHF)
  • Cooling: Radiation plus forced air through the base
  • Base: Special 5-pin with integral air-system socket requirement (SK-500 series)
Typical applications
  • Homebrew HF linear amplifiers (grounded-grid and grid-driven)
  • Class AB audio modulators and Class C RF amplifiers
  • Commercial and broadcast transmitters (especially FM service around 100–110 MHz)
  • Industrial RF generators and dielectric heating equipment
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