U20107 Used Ameritron AL-811H Amplifier, Weak Tubes

Ameritron AL-811H HF Linear Amplifier — Used, Ham Weak Tubes

The Ameritron AL-811H is one of the most popular HF linear amplifiers in amateur radio, and this example presents well, with only minor scuffs/marks on case. The cover is missing 4 screws, but is firmly attached to the unit. Pulled from an active ham shack, all front panel controls, meters, and switches are present and intact. The cabinet shows normal shack wear consistent with regular use.

Condition Highlights

• Used — normal wear from ham shack operation
• Front panel presents cleanly; all knobs, meters, and switches intact (has markings from previous owner)
• Scuffs/marks on case. Cover missing 4 screws
• Both analog meters (Plate Voltage/Current and Grid Current) present and unbroken
• Rear panel intact with all connectors and band-specific input tuning ports present
• Made in USA — Starkville, MS
• Serial No.: AL-811H-26299

What's Included

• Ameritron AL-811H Amplifier
• AC power cord (attached, visible in photos)
• No manual or accessories included unless noted

Specs & Features (from unit)

• 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
  

Safety Notice

⚠️ DANGER — LETHAL VOLTAGES. Never remove the cover with power mains connected. Always discharge filter capacitors before servicing. 

Other info. This amplifier works but the tubes are weak. You will need to replace the tubes to get full output power. Full warranty on amp, no warranty on tubes

Warranty

Comes with our 90-Day Warranty! No Warranty on tubes

S/N: AL-811H-26299

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