Interest will be charged to your account from the purchase date if the balance is not paid in full within 6 months. The main category is ameritron al 811h that is about 16010 meter rf amplifier. How the low cost 811a tube resists premature failure even when your amplifier is mistuned. If your amplifier is out of range on hv reading, or if the amplifier hv sags excessively beyond manual specifications when transmitting normally, you should seriously consider 240v wiring. Ameritron al811h amplifier service and user manual free service manuals, fast download, no limits. 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. You get a quiet desktop linear thats so compact itll slide right into your station youll hardly know its there. As radio amateur time is free and one can modify at random time. I went and figured out the problem just because it bugged me that it wasnt working as it should. Jul 27, 2019 al 811h service pdf the alh is a grounded grid linear amplifier developed by ameritron using low cost a power triodes.
Their high power vacuum tube linear amplifiers and solid state no tune amplifiers will take your hf operations to the next level. An adjustable alc out voltage is also available from the linear amplifier that can be fed back to the ftdx 1200 to limit the exciter drive to legal and safe levels for the al 811h. Ameritron al 811h instruction manual 116 willow road starkville, ms 39759 usa 6623238211 version 6 printed in u. Ameritron al811h amplifier instruction manual pdf viewdownload. The al 811h has the essential design elements for a clean, stable signal. Service and user manual ameritron al811h amplifier. This link is listed in our web site directory since tuesday apr 10 2007, and till today ameritron al 811 manual has been followed for a total of 7730 times. Can you site some issues you think are not good and how it can be improved. Amerifron is a cheapsimple and proven effective method. Ameritron al811h instruction manual shipping cost cannot be calculated. Ameritron amplifier al811 instructions have many mistakes. Apr 23, 2020 ameritron al 811h instruction manual the long wire to be replaced by coaxial cable rgso that the length janual converted into a small capacitance in parallel with the load capacitor.
Jan 03, 2020 ameritron al811h instruction manual shipping cost cannot be calculated. Al 811 linear amplifier features the al 811 is a grounded grid linear amplifier developed by ameritron using low cost 811a power triodes. Jun 22, 2019 ameritron al811h manual pdf view and download ameritron alh instruction manual online. The al 811h is a grounded grid linear amplifier developed by ameritron using low cost 811a power triodes. The ameritron al811h is an attractive choice as an entry level amplifier for the low budget amateur operator. Mar 20, 2020 ameritron al 811h instruction manual if the pa is not used for a long time and goes back into a,eritronremove the fuse and let the amplifier an hour long stand idle. Ameritron hf power amplifiers are the most popular hf amplifiers in the world. Conveniently plug it into your nearest 120 vac outlet no special wiring needed.
Read the manual to become familiar with the operation of the al 811 amplifier. Ameritron al 811 and al 811h resources category is a curation of 10 web resources on, ameritron al 811h tube selection, ameritron al 811 panel meter lights, al811 trouble shooting. The al 811h is sold worldwide and is quite a wellbuilt budget amplifier, but by no means easy to repair. Apr 05, 2020 ameritron al 811h manual pdf view and download ameritron alh instruction manual online. The al 811 is rated at 600watts pep voice, or just over 400watts carrier in normal cw modes. Ameritron hf power amplifiers al811h dx engineering. After about a week it would tune and then amplifier plate and grid meters would go haywire. The wirewound resistor also acts as a replacement for inductor l7. This video is about the ameritron al811h amplifier setup and tuning. The al 811h is rated at 600watts cw carrier in normal cw or tune. Ameritron al811h amplifier servico e manual do usuario. Ameritron al811h instruction manual download instruction manual of ameritron al811h amplifier for free or view it online on. Ameritron al811h instruction manual pdf download manualslib.
Place the plate and load controls and band switch of the amplifier to the specified locations labeled cw procedure as shown on page 7 of the al811 or page 6 for the al811h instruction manual. The ameritron advantage becomes apparent at the heart of the al 811 amplifiers. Dec 27, 2019 ameritron al 811h 800w ham amateur radio hf linear amplifier i assume there are no professional repair people around. You even get 400 watts on demanding continuous modes like rtty, sstv, fm and am. I dont know if there is even a service manual available for the alh. My inspection yielded a burned grid resistor and a partially conductive varistor on. Up for auction is a lightly used, fully operational ameritron al 811h linear amplifier hf. About ameritron al 811 manual the resource is currently listed in in 2 categories. For sale is a new condition ameritron al 811h 800 watt amplifier.
The modern components are rated to deliver reliable, effective hf communications power levels if operated within their specifications. The al811h is a grounded grid linear amplifier developed by ameritron using low cost 811a power triodes. Mar 23, 2021 for sale is a new condition ameritron al 811h 800 watt amplifier. Get 600 watts output pep ssb and 500 watts output cw. The ameritron al811h is an economical 800 watt pep output linear amplifier that operates reliably from 160 through15 meters. Ameritron al 811hd instruction manual 116 willow road starkville, ms 39759 usa 6623238211 version 6 printed in u. However, its as if the valves are getting no drive on transmit. Ameritron al811h amplifier instruction manual pdf view. You get absolute stability and superb performance on higher bands that can. The ameritron al 811h amplifier can put out a maximum of 800 watts ssb and 600 watts cw. Ameritron al811h instruction manual 116 willow road starkville, ms 39759 usa 6623238211 version 6 printed in u. You get absolute stability and superb performance on higher bands that. The al 811h uses four 811a tubes in a class ab2 grounded grid circuit.
The 811a tubes take approximately 10 seconds to warmup. I used to have an ameritron 811h four tube version and no longer have the manual, but if i remember correctly, the setting method was to transmit a known signal level into the amplifier and adjust the alc control on the amp until the power output of the amplifier dropped just barely, thus setting the level for protection. The ameritron al 811h is an economical 800 watt pep output linear amplifier that operates reliably from 160 through15 meters. Jun 04, 2020 ameritron al811h instruction manual this is a later model, by the way. Al811, al811h, al572, other amps trouble shooting guide. The al 80bx and al 80by are export models that operate from 160 through 10 meters. Purchased new al 811h amplifier and it failed after a week. Description ameritron al811 linear amplifier gives you plenty power to bust thru qrm. Ameritron leads the industry with timetested designs that offer the best value for amateur radio operators and hf experimenters everywhere. The ameritron al 811hd is an economical 800 watt pep output linear amplifier that operates reliably from 160 through15 meters. Because there size s little space was to the valve sockets.
The al h is sold worldwide and is quite a wellbuilt budget amplifierbut by no means easy to repair. Only the ameritron al811h gives you four fully neutralized 811a transmitting tubes. Ameritron al 811 amplifiers are excellent for the newcomer because theyre tough enough to withstand momentary mistuning. I used to have an ameritron 811h four tube version and no longer have the manual, but if i remember correctly, the setting method was to transmit a known signal level into the amplifier and adjust the alc control on the amp until the power output of the amplifier. This resource is listed under radio equipmenthf amplifiers ameritron al, at ameritron al manual resource.
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. I assume there are no professional repair people around. Description ameritron al 811 linear amplifier gives you plenty power to bust thru qrm. 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. Heavy duty power supply and rf components provide long service for components. Al 811h linear amplifier features the al 811h is a grounded grid linear amplifier developed by ameritron using low cost 811a power triodes. Ameritron al811h amplifier setup and tuning youtube. Flashover in a tube of an unprotected rf amplifier. Therefore, a sumiere test was done with the two types. Place the plate and load controls and band switch of the amplifier to the specified locations labeled cw procedure as shown on page 7 of the al 811 or page 6 for the al 811h instruction manual.
Al811h amplifiers cover all hf bands, 160 through 15 meters. Al811h is shipped with the fuses and fuse caps inside the amplifier. About ameritron al811h manual the resource is currently listed in in a single category. Anyone connect a ameritron 811h to a yaesu 991a qrz forums.
Jun 24, 2019 ameritron al811h manual pdf view and download ameritron alh instruction manual online. The ameritron al811h is an economical 800 watt pep output linear amplifier that. View online instruction manual for ameritron al 811h amplifier or simply click download button to examine the ameritron al 811h guidelines offline on your desktop or laptop computer. Plus, the tubes are so inexpensive that you can replace one for mere pocket change. In other words, if you use the 811h amp in conjunction with the tuneryou will burn it outthe 929 auto tuner that is. The 811a tubes take approximately 3 seconds to warmup. The plate caps have also been wrapped in bubble wrap. You can add 10 and 12 meter operation instructions with proof of a valid fcc amateur radio license. Al811h and 811 tuning supplement antennas radios amplifiers. The ameritron al 811h is an attractive choice as an entry level amplifier for the low budget amateur operator. View and download ameritron al811h instruction manual online. It did make it work better on 17 meters which i operate from time to time. I used as earth the screw at the bottom of the anode choke.
Listed under the radio equipmenthf amplifiersameritron al811 category that is about ameritron al811 and. The 811a tubes are long life, reliable transmitting tubes. Tuning targets for the al 811h and other 811a units here is a collection of different 811a amp s typical operation parameters gathered from the web, manuals, and using appropriate multiplication factors to convert to 4 tube equivalent when required for 2 cases except for the al 811 at bottom, 3. Connect the amplifier to a dummy load and adjust for maximum ouput. Key the amplifier and observe the external wattmeter. Shipped with transformer installed and wired for vac.
A unique buckboost winding allows adjustment of primary voltages to match a wide range of segvice voltages centered on and volts. Ameritron al80b al811h al572 amplifier trouble shooting. If the pa is not used for a long time and goes back into operationremove the fuse and let the amplifier an hour long stand idle. Feb 24, 2020 and besides, the mfj 929 is rated for 200 watts for barefoot hf transceivers while the al 811h puts out about 500 watts.
Getting to any component is a complete pain, one has to take the back panel off and release enough of the wiring on the large double sised pcb to get aught e. The al 811h is rated at 800watts pep voice on a good peak reading meter. In reality, no way to predict how the circuits actually behave. Ameritron al80b instruction manual pdf download manualslib. The main category is ameritron al 811 and al 811h hf amateur radio rf power amplifier that is about ameritron al 811 and al 811h resources. I have really enjoyed using the ameritron al 811 h amplifier. I can hear at least one of the relays going over, but the swr into the amp is very high. The al811h is a grounded grid linear amplifier developed by. To dig in the amplifier almost everything has to be deinstalled. It is easier to tune the amplifier using an external wattmeter. I have removed the tubes and packed them in bubble wrap and cardboard shipping tubes with the amplifier. You might want to consider using this mfj manual tuner with your transceiver and al 811h. It is competively priced and provides 800 watts of power. Theres no compromise on warc and most mars bands you get 100% rated output.
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