Table of Contents
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The Ameritron AL-82 is a 1500 watt output linear amplifier that
operates from 160 through 15 meters. The Ameritron AL-82X is the
export model and covers 160 through 10 meters. The AL-82J is the
export model for Japan and covers 160 through 10 meters. The AL-
82/X/J uses two 3-500Z tubes in a class AB2 grounded grid circuit.
CW, FM and RTTY efficiency is improved by shifting the bias deeper
into class B. The heavy duty power supply and RF components,
combined with a forced air system utilizing chimneys, provide long
service life for expensive components. The AL-82/X is shipped
factory wired for 240 volt, 50/60 Hz power mains. The AL-82J is
shipped factory wired for 200 volt, 50 Hz power mains.
PLEASE READ THIS MANUAL BEFORE OPERATING THIS EQUIPMENT!
Rev. 3
AMERITRON AL-82
FULL POWER
LINEAR AMPLIFIER
INSTRUCTION MANUAL
116 Willow Rd.
Starkville, MS 39759
U.S.A.
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Summary of Contents for AMERITRON AL-82
- Page 1 FULL POWER LINEAR AMPLIFIER INSTRUCTION MANUAL The Ameritron AL-82 is a 1500 watt output linear amplifier that operates from 160 through 15 meters. The Ameritron AL-82X is the export model and covers 160 through 10 meters. The AL-82J is the export model for Japan and covers 160 through 10 meters.
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Page 2: Unpacking Instructions
Inspect each item for visible damage. If any damage occurred during shipment, notify the transportation company immediately. 2. Save all packing materials in case you need to return your AL-82/X/J for factory service. The cartons have been designed to give maximum protection for this amplifier. - Page 3 F E A T U R E S 6. Two Illuminated Panel Meters: the AL-82 has two il- 1. Inexpensive tubes: the AL82 uses a pair of rugged 3- luminated panel meters. The Grid Current meter provides 500z tubes. a continuous reading of grid current and indicates proper operation of the amplifier.
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Page 4: General Information
Normal amateur operation in CW and SSB will reply not cause heat damage to components on any recommended tap. AMERITRON It is always advisable to use the maximum speed (air flow) that the level of noise permits to extend component life. Wiring 116 Willow Rd. -
Page 5: Metering Functions
METERING FUNCTIONS The AL-82 has two illuminated meters. The Grid Current meter provides Peak RF Watts (PO): Read Peak RF Watts on the 2000 watt scale. This a continuous indication of the two 3-500z grid current. This exclusive scale has 50 watt divisions below 1000 watts and 100 watt divisions above feature of Ameritron amplifiers indicates proper amplifier operation better 1000 watts. -
Page 6: Transformer Installation
TRANSFORMER INSTALLATION For 220V connections(see Fig. 3), follow the first three steps on the 240V operation on page 4, then follow the steps below: 1. Slide the RED boot back on the BRN/WHT wire 2. Clip the terminal connector off the wire and slide the RED boot off. - Page 7 FILAMENT/BLOWER WIRING INSTRUCTIONS The AL-82 and 82(X) amplifiers come prewired for 240V line voltage and with the blower prewired for medium high fan speed. NOTE: The AL-82J Japanese export model is prewired for 208V line voltage and with the blower prewired for medium high fan speed..
- Page 8 100mA of current when pulled to ground. 1. Connect the RF output of the exciter to the RF IN connector on the rear of the AL-82 with 50 ohm coax. Use any good 4. Connect a short ground lead from a good earth and RF ground quality 50 ohm cable long enough to connect the amplifier to to the GND terminal.
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Page 9: Power Connections
POWER CONNECTIONS Do not operate the Amplifier in excessively warm locations The AL-82 is supplied with a NEMA 6-15P plug for 240V or near heating vents or radiators. Be sure air can circulate AC operation. Operation with power main voltages below 200 freely around and through the Amplifier cabinet. -
Page 10: Operation
4 and 5 for wiring details. 150 mA. Return the CW-SSB switch to the CW position. 1. Set the AL-82 front panel switches as follows: POWER TO OFF Note: The no drive currents will vary up to 25% due to OPR-STBY TO STBY component and line voltage tolerences. - Page 11 SSB PROCEDURE The primary use of the ALC is to reduce the input drive power to a safe level for the AL-82. The maximum drive that the AL-82 will tolerate is Tune the Exciter and Amplifier as described in "TUNE-UP CW approximately 130 watts.
- Page 13 AL-82 SCHEMATIC Power supply shown wired for 240V operation...
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Page 14: Parts List
PARTS LIST... - Page 15 Willow Road Starkville MS 39759 Limited Warranty Ameritron warrants to the original purchaser that this product shall be free from defects in material (except tubes and RF output transistors) or workmanship for one year from the date of original purchase.