Tof tuning aid for amplifiers 811a tube history and construction business page link parts and circuit boards ctr engineering, inc please take time to read. Read the manual to become familiar with the operation of the al811 amplifier. Amateur amplifiers the ameritron al811 linear amplifier gives you plenty power to bust thru qrm. Listed under the radio equipmenthf amplifiersameritron al811 category that is about ameritron al811 and. These heavyduty 811as are a modern version of the venerable vacuum tube that has been around for a long, long time. Simply cut the existing plug off and wire the appropriate plug in its place. Well after being away from the forum for some time im so glad to be back and back with my flex sdr.
Three tough 811a transmitting tubes, extra heavy duty power supply, all hf band coverage, pressurized ventilation, tuned input, dual illuminated meters. Database contains 1 ameritron al811h manuals available for free online viewing or downloading in pdf. Ameritron hf power amplifiers al811h free shipping on. The al811hx export model is wired for 240v, 5060 hz operation. 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. Go to the product page and click on the product manuals tab. You really should be reading the manual 811h pdf pages 2, and 5. Since ameritron says it is ok id say you can dismiss the conflicters. They have proven themselves in all kinds of amateur, commercial, and military service. In this page you find schematic, users and instructions manuals, service manuals, technical supplement, leaf leads and other good stuff. Any difference between them is apparently too small to be noticable.
Hi, i have a friend who has problems with his al811 and the anode parasitic chokes on 28 mhz. The older al811h prior to drive resistor modification with good tubes and stable power line, when properly tuned and operating in the linear region, has about 11 db gain. Well i am kind of confused about how to change my amp to 240v. Ameritron diagrams, schematics and service manuals download for free. During the warranty period, ameritron or an authorized ameritron service facility will provide free of charge both. The result is an easy to read, photo illustrated schematic for both vintages of amplifier.
Home of the am pressexchange, the am forum the largest bbs of its kind,and the am classifieds, photos, audio, and technical information. We have 1 ameritron alh manual available for free pdf download. If you want an amp for ssb, its really hard to beat this one. Free ameritron diagrams, schematics, service manuals. You must wire the proper plug on the end of the power cord supplied. And im finding it to be somewhat more dificult to tune with the flex.
View and download ameritron alh instruction manual online. The main category is ameritron al811h that is about 16010 meter rf amplifier. Ive installed them in al811 and 811h amps with no problem or retuning for several years now. Reading all manual tuning steps and dry practicing without actually. He doesnt have internet access so ill have to mail any answers to england. I also have an ldg atproii autotuner which has a one button manual tuning feature that i wanted to utilize in addition to the full and semiautomatic tuning abilities. Mentre scrivo sono sullisola di dino per il contest i.
Place the amplifier on a firm, level surface and carefully inspect it for shipping damage. Tuned input provides excellent load for any rig a pinetwork tuned input provides a 50 ohm load for your rig. I recently purchased with it an ameritron al811h amplifier which im not to familiar with. Ameritron al811h manual pdf view and download ameritron alh instruction manual online. About ameritron al811h manual the resource is currently listed in in a single category. The al811h is rated at 600watts cw carrier in normal cw or tune. Carefully lift the amplifier by the bottom cabinet edge out of the shipping carton. While familiarity with the manual is recommended for all excavators and alabama 811 member underground facility owners, their responsibilities are as provided. This are the same manual use by experts and even technicians. An arced tunec is a good thing because it saved your bandswitch. You get a quiet desktop linear that is so compact it will slide right into your station you will hardly know it is there.
Their high power vacuum tube linear amplifiers and solid state no tune amplifiers will take your hf operations to the next level. I want to upgrade to a linear amp for a little more punch. User manuals, guides and specifications for your ameritron al811h amplifier. I own two ameritron al811h amplifiers, an old one and a new one. Describe your experience with the ameritron al80a and tell us why you give it the rating you did required. This link is listed in our web site directory since wednesday apr 20 2011, and till today ameritron al811h manual has been followed for a total of 17 times. Manuals for ameritron this is the manuals page for ameritron. I sold my al811 to fund a bigger amp purchase so i cant even help him with the resistor values. If you are rewiring the al811 for 240230220v operation, you must use 8. Quickly tune the ameritron al811 tuning procedure using a. Ameritron 811a replacement power tubes are available for allpurpose amateur radio service. The al 811h uses four 811a tubes in a class ab2 grounded grid circuit.
This notice includes the instructions for upgrades, circuits descriptions with diagrams, color photos, schematic diagram, part lists and connections. View and download ameritron al80a instruction manual online. This resource is listed under radio equipmenthf amplifiers ameritron al, at ameritron al manual resource. Supplemental tuning instructions 1005 2011 trouble shooting al811. After mounting all modifications the power was measured with a bird watt meter, 2500h 2. View and download ameritron al80b instruction manual online.
Please note that the output in the table is partly achieved by exceeding the maximum grid and anode current. Heavy duty power supply and rf components provide long service for components. Ameritron al811h instruction manual 116 willow road starkville, ms 39759 usa 6623238211 version 6 printed in u. 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 strictly forbidden without authorization from ameritron. The main category is ameritron al811 and al811h hf amateur radio rf power amplifier that is about ameritron al811 and al811h resources. All works very well on all bands except on 28 mhz 10m. Customer accounts did not transfer over to the new site so you will need to create a new account. Ameritron leads the industry with timetested designs that offer the best value for amateur radio operators and hf experimenters everywhere. The appropriate plug is not provided for this model. Since the schematic supplied by the manufacturer is essentially unuseable, i decided to make a project of documenting both units. I have seen an al811 with shattered 811a filaments because it did not have a glitchr when it oscillated at 95mhz.
Even fussy solid state rigs can deliver their full drive to al811. The ameritron al811 power supply is built tough so you get peak performance year after year. This is a good and quick tuneup procedure for anyone, but i encourage everyone to read their manual. A site dedicated for the am radio amateur and vintage radio. Ameritron hf power amplifiers are the most popular hf amplifiers in the world. Reproduction of the complete original factory manual for the ameritron al811h linear amplifier. The al811h is sold worldwide and is quite a well built budget amplifier, but by no means easy to repair.
The al 811 is a grounded grid linear amplifier developed by ameritron using low cost 811a power triodes. Contact the shipper immediately if any damage exists. Page 1 hf power linear amplifier instruction manual the ameritron al811h is an economical 800 watt pep output linear amplifier that operates reliably from 160 through15 meters. The hb units include the dx811a cq magazine 1982, a very elegant. Ameritron 811a replacement power tubes 3800811a free. View and download ameritron al811h instruction manual online. Therefore, i turned my attention to the required interface cabling. About ameritron al811 manual the resource is currently listed in in 2 categories. Ameritron al811hd instruction manual 116 willow road starkville, ms 39759 usa 6623238211 version 6 printed in u. Ameritron al 811x user manual by debbracazares issuu. Page 8 imited arranty ameritron warrants to the original purchaser that this product shall be free from defects in material or workmanship for one year from the date of original purchase. This is tuning the al811h amplifier by burt fisher on vimeo, the home for high quality videos and the people who love them.
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