AL-811H, HFAMP, 800W, (4)811A TUBES,US120VAC

Only the AMERITRON AL-811H gives you four fully neutralized 811A transmitting tubes. You get absolute stability and superb performance on higher bands that can’t be matched by un-neutralized tubes. You also get efficient full-size heavy duty tank coils, computer grade capacitors, heavy duty high silicon core power transformer, slug tuned input coils, operate/standby switch, transmit LED, ALC, dual meters, QSK compatibility with QSK-5 option and much more!


  • Output power: 800 Watts PEP, 600 Watts CW. •
  • All Band Operation: Covers 160-15 Meters including WARC bands. Can be user modified for12 and 10 Meters. •
  • Four 811A Tubes: Uses four rugged, fully neutralized low cost 811A PA tubes. • Vertical Tube Mounting: Prevents shorting of tube filament/grid, prolongs tube life. •
  • Fully Neutralized: Improves stability and performance on higher bands. •
  • Input Tune Circuit: Adjustable rear panel slug tuned input circuit. •
  • ALC Control: Built-in adjustable ALC control. •
  • Vernier Reduction Drives: Tuning and loading reduction drives make tuning smooth and easy. •
  • Dual Illuminated Meters: Monitor vital operating functions. •
  • Heavy Duty Power Supply: 17 pounds, high silicone steel core transformer and computer grade filter capacitor gives 1700 Volts high voltage at no load and 1500 Volts at full load. Multi-Voltage Operation: User selectable for 100/110/120/210/220/230 VAC operation. Shipped with transformer installed and wired for 120 VAC for domestic model or 240 VAC for export model. •
  • Air-Cooled: Quiet pressurized ventilation keeps tubes safely cooled. QSK Compatible: Optional external electronic pin diode Transmit/Receive switch. QSK-5 •
  • Attractive Lexan front decal •
  • One Year AMERITRON warranty. •
  • Dimensions: 8 ¼" x 13 ¾" x 15 ½". •
  • Operating Weight: 32 lbs. •
  • Made in USA
Ameritron AL-811 Variants
600 W output
(3 x 811A tubes)
800 W output
(4 x 811A tubes)
800W output
(4 x 572B tubes)
US 120V AL-811 AL-811H AL-811HD
Export 220/240V AL-811X AL-811HX AL-811HDX
Export 220/240V CE certified AL-811XCE AL-811HXCE AL-811HDXCE
Export 120V w/10 Meters AL-811Y AL-811HY AL-811HDY


Product Manuals

Download Product Manual