| 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 manufacturer's 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 can't deliver as much power as the AL-82. Why?
Because the lightweight power supplies they use don't 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. |
