Ameritrons legendary al80a kilowatt amplifier has been completely redesigned and extensively improved. The al 572 pipil output network gives you exceptionally smooth tuning, wide matching range, full band coverage and peak performance at all power levels. But the main trading company of paris,texas had the best price of all the ham stores listed in the qst magazine. Trouble locating hints 10052011 trouble shooting guide below generally applies to many types of amplifiers with suitable part number changes. By starting your al 80b through a 10 ohm current limiting resistor, then shorting the resistor with a relay, the al 80b gives you a start up sequence thats easy on your tube and power supply components. Ameritron al80a restoration project ham radio library. The al 80b special stepstart inrush protection stop damaging inrush current. Ameritron al80b sm service manual download, schematics. Jul 16, 20 ameritron al 80 user manual download here. All information, images, and documents on this website are the sole property of ameritron any reuse or redistribution of the contents of this website are. The al80bx and al80by are export models that operate from 160 through 10 meters. This link is listed in our web site directory since monday apr 17 2006, and till today ameritron al80a modification has been followed for a total of 10615 times.
Most of the parts are still available andor interchange withe the al80b which is an added benefit. Ameritron al 80a 1kw output, 16015, 10 possible with mod. I have owned the al 82 for three years now, and over that time, it has given me incredible performance on all bands. It employs a single 3500z tube and is designed to produce up to a kilowatt of signal in ssb service on the ham bands. It also applies to all amplifiers in the al80 mainframe with suitable changes in r106 and r107. I hope they might help others looking for the same info as well. View and download ameritron al80a instruction manual online. Their high power vacuum tube linear amplifiers and solid state no tune amplifiers will take your hf operations to the next level.
The al80a 198412 on the al80a was not the same as the al80 above. Only the ameritron al 811h gives you four fully neutralized 811a transmitting tubes. Describe your experience with the ameritron al 80b and tell us why you give it the rating you did required. This link is listed in our web site directory since monday apr 17 2006, and till today ameritron al 80a modification has been followed for a total of 10615 times. Mfj enterprises inc, ameritron,hygain,hygain,cushcraft,vectronics,mirage,mfj,mfj enterprises,antenna,radio,ham radio,amateur radio,tuner,analyzer,starkville,amplifier. Describe your experience with the ameritron al80b and tell us why you give it the rating you did required. Click the button below to add the ameritron al82 super legal limit hf.
Free ameritron diagrams, schematics, service manuals. Ameritron amplifiers, buy new and used products from ham. You get absolute stability and superb performance on higher bands that cant be matched by unneutralized tubes. This site helps you to save the earth from electronic waste. The main category is amateur linear amplifiers that is about hf amplifiers for ham radio use. View and download ameritron al 80a instruction manual online.
It involves cutting a grounding wire going to the 10 meter input coil. Ameritron al80b al811h al572 amplifier trouble shooting. Manuals for ameritron this is the manuals page for ameritron. Ameritron al80 al 80 al80 pdf user manual for ameritron al80 al 80 al80. Ameritron al80b xcelast one reduced to clear new boxed but.
Amphf ameritron al82 hf amplifier this is a very nice ameritron al82 amplifier. Last day ameritron als600 solid notune state hf amp. I studied the situation for a few weeks, and finally settled on the ameritron al80b amplifier. The ameritron al82 linear amplifier is designed to give you years of trouble free service at the full legal output. Ameritron chose to use a 10 ohm, 10 watt, resistor in the al 80b s softstart circuit.
Ive had it for about 2 years and have traded up to a solid state amp. Ameritron al 80b amplifiers use a genuine 3500zg tubenot the cheaper, less reliable 3500 tubes used by some competitors. Get a higher power tank circuit and grid overload protection. Mfj enterprises inc,ameritron,hygain,hygain,cushcraft,vectronics,mirage,mfj,mfj enterprises,antenna,radio,ham radio,amateur radio,tuner,analyzer,starkville,amplifier. The wire grounds the 10 meter input tuned coil which in turn will not let you drive the amp in the 10 meter posposition. The al 80a covers the amateur radio bands 160 through 15. Ameritron al82 super legal limit hf amplifier w 2 x 3. The biggest difference between the 100 watt transceiver signal and the ameritron amp is the reports. I bought a used al80a amp and sent it to ameritron and had the tech,fix everything that was wrong with it,and now it works flawless those.
Al80b instruction manual introduction the ameritron al80b is an 800 watt cw, watt pep output linear amplifier that operates on all amateur bands from 160 through 15 meters. Ameritron al80b specifications please read this manual before attempting to operate equipment unpacking instructions 1. This is the basis of ameritrons output rating of 1. Ameritron al80b w desktop linear hf 16015m amplifier, 3500zg tube. Power line voltage in the usa is 120 or 240 nominal. An inside look at ameritrons al80b dual led illuminated crossneedle meters give you four. The al572 pipil output network gives you exceptionally smooth tuning, wide matching range, full band coverage and peak performance at all power levels. If i sign with one station usually one or more stations call me. If you have a choice run it on 240 volts instead of 120vac. Find ameritron hf power amplifiers al80b and get free standard. Ameritron amplifiertotransceiver interface the arb704 will work with almost any transceiver without the need for a plugandplay prewired cable.
As for tuning the amp, the instructions are quite clear in the manual. The modified schematic below shows where the new 47k resistor is. Al 80b instruction manual introduction the ameritron al 80b is an 800 watt cw, watt pep output linear amplifier that operates on all amateur bands from 160 through 15 meters. The arb704 advanced interface is compatible with all common radios and amplifiers even though radios and amplifiers do not have standardized voltages, accessory plugs, or wiring. I bought this amp because i did not have one capable of operation on the. If you listen closely to someone running the stock dynamic bias circuit you may hear a gritty first syllable or a mushy first cw note. I have owned the al82 for three years now, and over that time, it has given me incredible performance on all bands. Service manuals, schematics, eproms for electrical technicians. Check the schematic, because if they did add either of these devices they should be checked to make sure they didnt fry when the tube shorted. The all new al80b kilowatt output desktop linear can double your average ssb power output with highlevel rf processing using ameritrons exclusive dynamic alc. Ameritron grid overload protectors gop100 free shipping. It has a separate rf compartment thats fully shielded to keep rf from leaking out. The mod for the ameritron al811h is more than you mentioned.
I just wanted to show how i tune up my ameritron al 811 ham radio amplifier. The ameritron al80a linear amplifier is designed for over watts output ssb pep 850 watts output on cw with high efficiency and total reliability. It easily runs about 800 watts pep, using a single 3500zg tube. Al 80b dynamic bias defeat if you listen closely to someone running the stock dynamic bias circuit you may hear a gritty first syllable or a mushy first cw note. Multiply that times four, and youre comparing 640 watts of heat rating to 500, about 30% more. W7tdc article on restoration of the al80a rf amplifier. Ameritron al80a sm service manual download, schematics. Ameritron will not be responsible for reshipping damage due to improper packing. They feature a fastacting electronic circuit that rapidly disables the amp if excessive grid current conditions occur. Only the ameritron al811h gives you four fully neutralized 811a transmitting tubes. About ameritron al80a modification the resource is currently listed in in a single category. The al 80bx and al 80by are export models that operate from 160 through 10 meters. Speaker filter headsets keykeyers kits lightning arrestors low pass filters mics and speaker mics misc mounts for radios software swr analyzers tcxo tncsound card interfaces tone unit voice.
The al80a covers the amateur radio bands 160 through 15 meters, it also features wide frequency coverage for mars and other. Ameritron al80a 1kw output, 16015, 10 possible with mod. Always read and understand the instruction manual before operating any ham radio equipment. I can from on the air operation recommend the al 811. The guts of the al 80b amps are their heavy duty power supplies. Amphf ameritron al 82 hf amplifier this is a very nice ameritron al 82 amplifier. This are the same manual use by experts and even technicians. I love the hobby and experimenting with radios, antennas and software. Ameritron grid overload protectors protect your amplifiers tube from excessive grid current. The ameritron al80a uses a single 3500z triode to produce over 1kw of power with only 65 watts of drive. Also had the earlier al80a, both are the same basic amplifier with the 80b having an alc circuit and a few other small changes.
Ameritron hf power amplifiers al80b free shipping on most. Ameritron hf power amplifiers al80b free shipping on. Al80b ameritron al80b 1kw hf amp w3500zg tube, 110vac us. Dont expect much over 800 watts without really pushing it, but that does me just dandy on ssb. Ameritron states that it will provide information on the 10 meter mod for the al808b to any licensed amateur with proof of license.
In the fall of 2009 i acquired an ameritron al80b linear amplifier for my ham radio station. Ameritron al82 super legal limit hf amplifier w 2 x 3500z. Ameritron autophon etoalpha command technologies e. Never test or operate a tube type amplifier with the cover off and hv active. Depending on where in the ac power cycle the switch contact closure occurred, the amp sometimes turned on with a loud thump and the shorting relay engaged almost. Quickly tune the ameritron al811 tuning procedure using a. Other useful information would include your experience with similar products, infomation on a product that you would purchase instead of this one, and so on. Fast acting electronic circuit rapidly disables the amp if excessive grid current conditions occur. Iirc, the al80a didnt include an hv glitch resistor nor the b protection diode that a lot of later ameritron amps used as safety devices for issues like grid to anode shorts. In the fall of 2009 i acquired an ameritron al 80b linear amplifier for my ham radio station. The following is a revised al80b power supply board schematic. I need the 1012 meter mod for ameritron al80b, does any know what i need to do. Many amplifiers using two 3500s use such small power supplies they dont deliver much more power output than the al 80b. The al 80a 198412 on the al80a was not the same as the al80 above.
Genuine 3500zg tube the al 80b uses a genuine 3500zg tube warranted by the manufacturer not cheaper, less reliable 3500s used by some competitors. If you own an al80b with the dynamic bias circuit in place, listen to your own signal in another receiver. While this may be barely adequate for 120v operation, i judge it inadequate for 240v service. This amplifier is 100% operational and reaches full legal limit on 16010m.
Ameritron diagrams, schematics and service manuals download for free. Ameritron al80bx watts hf amplifier, 10 radioworld. Iirc, the al 80a didnt include an hv glitch resistor nor the b protection diode that a lot of later ameritron amps used as safety devices for issues like grid to anode shorts. Superb rf design and layout, hiq tank circuit and commercially rated rf power. The al80a, because of improved quality, drove ameritron sales upwards from around 510 units monthly up to about 50 units a month. Bell gpx enc tekk icom sony alinco drake cobra maxon vertex conair uniden jenson ranger midland whistler magnum unwired coleman. Amps new ameritron al80b tune up i purchased a new ameritron al80b and the manual is not totally clear to me as far as tuning it up without damaging the 3500z, especially how to set the alc to prevent overdriving. Ameritron al 80b linear amplifier single 3500z hf watts pep 110 or 220 volts. Superb rf design and layout, hiq tank circuit and commercially rated rf power components give you nearly 70% plate efficiency over most of the amateur bands. Based on this information, plus the fact that the originators request was posted to. Ball bearing vernier reduction drives on plate and load controls make tuning precise and easy.
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