{"product_id":"u20107-used-ameritron-al-811h-amplifier","title":"U20107 Used Ameritron AL-811H Amplifier, Weak Tubes","description":"\u003ch2\u003eAmeritron AL-811H HF Linear Amplifier — Used, Ham Weak Tubes\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eAmeritron AL-811H\u003c\/strong\u003e 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.\u003c\/p\u003e\n\u003ch3\u003eCondition Highlights\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eUsed — normal wear from ham shack operation\u003c\/li\u003e\n\u003cli\u003eFront panel presents cleanly; all knobs, meters, and switches intact (has markings from previous owner)\u003c\/li\u003e\n\u003cli\u003eScuffs\/marks on case. Cover missing 4 screws\u003c\/li\u003e\n\u003cli\u003eBoth analog meters (Plate Voltage\/Current and Grid Current) present and unbroken\u003c\/li\u003e\n\u003cli\u003eRear panel intact with all connectors and band-specific input tuning ports present\u003c\/li\u003e\n\u003cli\u003eMade in USA — Starkville, MS\u003c\/li\u003e\n\u003cli\u003eSerial No.: AL-811H-26299\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAmeritron AL-811H Amplifier\u003c\/li\u003e\n\u003cli\u003eAC power cord (attached, visible in photos)\u003c\/li\u003e\n\u003cli\u003eNo manual or accessories included unless noted\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecs \u0026amp; Features (from unit)\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eOutput power:\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003e800 Watts PEP, 600 Watts CW.\u003cspan\u003e \u003c\/span\u003e\u003cb\u003e•\u003c\/b\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eAll Band Operation:\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003eCovers 160-15 Meters including WARC bands. Can be user modified for12 and 10 Meters.\u003cspan\u003e \u003c\/span\u003e\u003cb\u003e•\u003c\/b\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eFour 811A Tubes:\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003eUses four rugged, fully neutralized low cost 811A PA tubes.\u003cspan\u003e \u003c\/span\u003e\u003cb\u003e• Vertical Tube Mounting:\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003ePrevents shorting of tube filament\/grid, prolongs tube life.\u003cspan\u003e \u003c\/span\u003e\u003cb\u003e•\u003c\/b\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eFully Neutralized:\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003eImproves stability and performance on higher bands.\u003cspan\u003e \u003c\/span\u003e\u003cb\u003e•\u003c\/b\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eInput Tune Circuit:\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003eAdjustable rear panel slug tuned input circuit.\u003cspan\u003e \u003c\/span\u003e\u003cb\u003e•\u003c\/b\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eALC Control:\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003eBuilt-in adjustable ALC control.\u003cspan\u003e \u003c\/span\u003e\u003cb\u003e•\u003c\/b\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eVernier Reduction Drives:\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003eTuning and loading reduction drives make tuning smooth and easy.\u003cspan\u003e \u003c\/span\u003e\u003cb\u003e•\u003c\/b\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDual Illuminated Meters:\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003eMonitor vital operating functions.\u003cspan\u003e \u003c\/span\u003e\u003cb\u003e•\u003c\/b\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eHeavy Duty Power Supply:\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003e17 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.\u003cspan\u003e \u003c\/span\u003e\u003cb\u003e•\u003c\/b\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eAir-Cooled:\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003eQuiet pressurized ventilation keeps tubes safely cooled. QSK Compatible: Optional external electronic pin diode Transmit\/Receive switch. QSK-5\u003cspan\u003e \u003c\/span\u003e\u003cb\u003e•\u003c\/b\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eAttractive Lexan front decal\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003e\u003cb\u003e•\u003c\/b\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eOne Year AMERITRON warranty.\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003e\u003cb\u003e•\u003c\/b\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDimensions:\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003e8 ¼\" x 13 ¾\" x 15 ½\".\u003cspan\u003e \u003c\/span\u003e\u003cb\u003e•\u003c\/b\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eOperating Weight:\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003e32 lbs.\u003cspan\u003e \u003c\/span\u003e\u003cb\u003e•\u003c\/b\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMade in USA\u003c\/b\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSafety Notice\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003e⚠️ DANGER — LETHAL VOLTAGES.\u003c\/strong\u003e Never remove the cover with power mains connected. Always discharge filter capacitors before servicing. \u003c\/p\u003e\n\u003cp\u003eOther 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\u003c\/p\u003e\n\u003ch3\u003eWarranty\u003c\/h3\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eComes with our 90-Day Warranty! No Warranty on tubes\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eS\/N: AL-811H-26299\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eQR-0000\u003c\/strong\u003e\u003c\/p\u003e","brand":"Used Gear","offers":[{"title":"Default Title","offer_id":46151318405167,"sku":"U20107","price":700.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8260\/1775\/files\/IMG_1743.jpg?v=1788966165","url":"https:\/\/mtcradio.com\/products\/u20107-used-ameritron-al-811h-amplifier","provider":"MTC Radio","version":"1.0","type":"link"}