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Ameritron AL-82 Super Legal Limit HF Amplifier w 2 x 3-500Z

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$18.00 (Fixed shipping cost)

Product Description

Ameritron`s Dual 3-500Z Amplifier

The Ameritron AL-82 Linear Amplifier is designed to give you years of trouble free service at the full legal output power limit.

An 1800 watt continuous commercial rated Hypersil transformer is standard with heavy duty rectifiers in a full wave bridge supply with computer capacitors. Two bias settings allow either high efficiency RTTY and CW operation at 1500 watts of output at nearly 70% plate efficiency or low distortion 1500 watts PEP, SSB or SSTV output. Silver plated tank components provide high efficiency operation above 20 meters. The Pi-L tank circuit permits full impedance matching capability over the entire 160 meter band. The tuning capacitors and bandswitch have a 35% safety factor to virtually eliminate tank circuit component failures, even under adverse operating conditions.

The cooling system keeps the components and tube safely below the manufacturers ratings, even while operating at 1500 watts output with a steady carrier. The filament supply has inrush current limiting to insure maximum tube life. Shielding and by-passing help prevent TVI and RFI at the high power levels in the AL-82.

The AL-82 has two illuminated meters. One is the Grid Current Meter that provides a continuous reading of the 3-500ZG grid current. This is an Ameritron first. Grid current indicates proper amplifier performance better than any other parameter. The other is a multi-meter that displays plate voltage, plate current, peak R.F. output power and drive power/ALC detector voltage. Some competing amplifiers using two 3-500ZGs cant deliver as much power as the AL-82. Why? Because the lightweight power supplies they use dont deliver enough high voltage to permit use of the full capability of the two 3-500ZGs. The AL-82 corrects this problem while still keeping the price at a reasonable level. The power supply in the AL-82 has a commercial service rated 32 pound tape wound Hypersil transformer and heavy duty rectifiers in a full wave bridge circuit with computer grade capacitors. No load voltage is 3600 V; full load voltage 3300V -- better than most competing dual 3-500ZG amplifiers.

Examine the features and component ratings of the AL-82 is a well engineered amplifier, built to give you years of power house service.

AL-82 Specifications:

Frequency coverage: 1.8, 3.5, 7, 14, 21 MHz and WARC bands. Export/User modified models include 28MHz.
Input Circuit:Adjustable pi-network, VSWR 1.2:1 or less at resonance.
Output circuit: Pi-L/Pi network.
Input Bandwidth: 20% for 2:1 VSWR or better.
Efficiency: CW/SSB nearly 70%
Operating Weight: 76lb.
Dimensions: 18 1/2"D x 17"W x 10"H
Power Requirement: 240 VAC 50/60 Hz 15 Amperes.
High Voltage: 3300 V full load, 3600 V no load.


Output: Legal limit - all modes; Drive: 65-100W for full output (varies with model); Plate Voltage & Current: 3300V DC, 800-1000 mA; AC Input: 240V AC @ 13 Amps (4 voltage ranges); Power Supply: Super HD with 32 lb. Hypersil® transformer, (20) 1000V @ 3 Amp rectifiers, computer grade capacitors, and HD bleeders, 2,500W rating; Dim: 17"w x 10"h x 18.5"d; 77 lbs

Made in the USA

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Product Reviews

  1. Great Amp 5 Star Review

    Posted by on 2nd Apr 2018

    My first review I said 1550 watts. Amp LP-100A all came in the same week. Now that I know what I am Doing I get can get about 1750 on peaks. But I run it 1500 watts per FCC rules, takes 80 watts for legal limit

  2. Great Amp 5 Star Review

    Posted by on 11th Aug 2017

    Tried it out for the first time last night on 160 M. It was great. My LP-100A watt meter was used for the first time also, showed peaks of 1550. I ham happy, now I car run full legal limit. I kept my old amp its an AL-80B. But the Main Trading Company of Paris,Texas had the best price of all the ham stores listed in the QST Magazine .