Page 95 of HAM Radio 2009 by MFJ Enterprises, Inc.

al-811/al-811h specifications input circuit type pi-network slug tuned coils maximum vswr at resonance 1.3:1 minimum 2:1 vswr bandwidth 15 max drive power permissable al-811 80 watts al-811h 100 watts typical drive rated output al-811 60 watts al-811h 75 watts output typical ssb pep voice operation al-811 600 watts al-811h 800 watts typical cw operation al811 400 watts al-811h 600 watts 1/2 hour pep two tone test al-811 500 watts al811h 650 watts 1/2 hour continuous carrier rtty al-811 300 watts input al-811h 400 watts input power supply circuit type full wave bridge no load voltage 1700 volts full load voltage 1500 volts full load current al-811 550 ma al-811h 650 ma regulation 10 maximum draw at rated output al-811 8 a al811h 10a ac input 120 v 50/60 hz al-811/h 240 v 50/60 hz al-811x/al811hx tubes type al-811 3 al-811h 4 811a vertically mounted continuous dissipation 65 watts per tube warm-up time 5 seconds metering multimeter reads hv and plate current grid meter reads pa grid current alc negative going 0-20 v adjustable phono jack efficiency ssb envelope crest greater than 70 mars/warc yes set to the nearest band connectors relay engages amplifier when grounded +12 vdc open circuit and supplies 100 ma when grounded a builtin back-pulse cancelling diode protects the exciter rf input so-239 50 ohm input rf out 50 ohms with full power into any swr below 3:1 power nema 5-15p 120 volts dimensions 151/2dx133/4wx81/4h inches operating weight 32 pounds shipping weight 41 pounds frequency coverage domestic model 160 80 40 30 20 17 15 meters 10/12 meters with modification must present fcc license at time of sale to obtain modification details third order imd at rated output -33 db al-80b specifications input circuit type pi-network slug tuned coils maximum vswr at resonance 1.3:1 or less minimum 2:1 vswr bandwidth 20 of center frequency max drive power permissable 100 watts typical drive for full power output 85 watts output typical ssb pep voice operation 1000 watts typical cw operation 800 watts 1/2 hour pep two tone test 800 watts 1/2 hour continuous carrier rtty 500 watts power supply circuit type full wave voltage doubler no load voltage 3000 volts full load voltage 2700 volts full load current .450 amp regulation 10 transformer 26 pounds capacitors 33 ufd total computer grade maximum draw at rated output 12 amps ac input 120 v 50/60 hz tubes type classic 3-500 continuous dissipation 500 watts warm-up time 5 seconds metering multimeter reads hv forward power reflected power swr alc alc set current meter reads plate and grid current alc true alc 0-10v negative front panel adjustable efficiency cw typically 66 or greater efficiency ssb envelope crest approximately 66 or greater mars/warc yes set to the nearest band connectors keying supplies 100 ma when grounded built-in back-pulse cancelling diode protects the exciter 12 vdc open circuit rf input so-239 50 ohm input rf out 50 ohms with full power into any swr below 3:1 power nema 5-15p 120 volts dimensions 151/2dx141/2wx81/2h inches operating weight 48 pounds shipping weight unit 54 lbs tube 3 lbs frequency coverage domestic model 160 80 40 30 20 17 15 meters 10/12 meters with modification must present fcc license at time of sale to obtain modification details third order imd at rated output -35 db al-572 specifications input circuit type pi-network slug tuned coils maximum vswr at resonance 1.3:1 or less minimum 2:1 vswr bandwidth 20 of center frequency max drive power permissable 100 watts typical drive for full power output 70 watts output typical ssb pep voice operation 1300 watts nominal 7 mhz typical cw operation 900 watts nominal 1/2 hour pep two tone test 1000 watts 1/2 hour continuous carrier rtty 650 watts power supply circuit type full wave voltage doubler no load voltage 2800 volts full load voltage 2500 volts full load current .7 amp regulation 14 or less transformer 21 pounds capacitors 33 mfd total computer grade maximum draw at rated output 16 amps ac input 120 v 50/60 hz tubes type 572b x4 continuous dissipation 640 watts warm-up time 5 seconds metering multimeter reads hv forward power reflected power swr alc alc set current meter reads plate and grid current alc true alc 0-10v negative front panel adjustable efficiency cw typically 60 or greater efficiency ssb envelope crest typically 60 or greater mars/warc yes set to the nearest band connectors keying supplies 100 ma when grounded built-in back-pulse cancelling diode protects the exciter 12 vdc open circuit rf input so-239 50 ohm input rf out 50 ohms with full power into any swr below 3:1 power nema 5-15p 120 volts dimensions 151/2dx141/2wx81/2h inches operating weight 40 pounds shipping weight 48 lbs frequency coverage domestic model 160 80 40 30 20 17 15 meters 10/12 meters with modification must present fcc license at time of sale to obtain details third order imd at rated output -34 db below pep rated output al-800 specifications input circuit type pi-network resistor attenuated maximum vswr at resonance 1.3:1 or less minimum 2:1 vswr bandwidth within +20 or -40 of selected band max drive power permissable 100 watts typical drive for full power output 70 watts output circuit type pi/pi-network output typical ssb pep voice operation 1250 watts typical cw continuous operation 1000 watts 1/2 hour pep two tone test 1000 watts 1/2 hour continuous carrier rtty 750 watts power supply circuit type full wave voltage doubler no load voltage 2600 volts full load voltage 2300 volts full load current 1 ampere regulation 12 or less transformer 32 pounds grain oriented el lamination capacitors 78 ufd total high current computer grade maximum draw at rated output 12 amps ac input 120 v 50/60 hz tubes eimacr 3cx800a7 continuous dissipation 800 watts warm-up time 180 seconds estimated life 6,000 hours icas metering multimeter reads peak forward power peak reflected power swr alc threshold alc output voltage and high voltage current meter reads plate and grid current alc negative going 0-10 volts phono jack output front panel adjustments efficiency cw approximately 66 or greater efficiency ssb envelope crest approximately 66 or greater mars/warc yes set to the nearest band connectors keying requires contact closure or sink of +12 vdc at 100 ma back pulse protected phono jack rf input so-239 50 ohm input rf out 50 ohms with full power into any swr below 3:1 power nema 5-15p 120 volts dimensions 171/4dx141/2wx81/2h inches operating weight 51 lbs shipping weight unit 59 lbs tubes 3 lbs frequency coverage domestic model 160 80 40 30 20 17 15 meters 10/12 meters with modification must present fcc license third order imd at rated output -35 db al-800h specifications input circuit type pi-network slug tuned coils maximum vswr at resonance 1.3:1 or less minimum 2:1 vswr bandwidth within 20 of center frequency max drive power permissable 100 watts pep typical drive for full power output 55 watts output circuit type pi/pi-network output typical ssb pep voice operation 1500 watts typical cw continuous operation 1500 watts 1/2 hour pep two tone test 1500 watts 1/2 hour continuous carrier rtty 1000 watts power supply circuit type full wave voltage doubler no load voltage 2600 volts full load voltage 2250 volts full load current 1.2 amperes regulation 15 transformer 32 pounds grain oriented el lamination capacitors 63 ufd total high current computer grade maximum draw at rated output 13 amps at 240 vac typical line current at 1500 watt pep output 9 amps at 240 vac power line current in standby .5 amperes at 240 vac tubes:eimacr 2 3cx800a7 continuous dissipation 800 watts per tube 1600 watts total warm-up time 180 seconds estimated life 8,000 hours icas metering multimeter reads peak forward power peak reflected power swr alc threshold alc output voltage and high voltage current meter reads plate and grid current alc negative going 0-10 volts phono jack output front panel adjustments efficiency cw typically 65 or greater efficiency ssb envelope crest approximately 65 or greater mars/warc yes set to the nearest band connectors keying engages contact closure or sink of +12 vdc at 100 ma back pulse protected phono jack rf input so-239 50 ohm input power nema 5-15p 240 volts dimensions 171/4dx141/2wx81/2h inches operating weight 52 pounds shipping weight unit 60 lbs tubes 5 lbs frequency coverage domestic model 160 80 40 30 20 17 15 meters 10/12 meters with modification third order imd at rated output -35 db exact performance measurements may vary due to the accuracy of test equipment and the measurement methods used prices and specifications subject to change without notice or obligation 10 http www.ameritron.com

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