Replace that sticky, scratched up front panel with a brand new one and make your amplifier look new again. Database contains 5 arcam alpha one manuals available for free online viewing or downloading in pdf. Manuals are listed alphabetically by model and have been taken from our archives and converted into pdf documents. This idea should also work with the alpha 374a and alpha 78 amplifiers, which share control circuit design. Alpha 78 amplifier manual excellent copy nationwide. At 1500 watts rf output and 60% efficiency typical for the alpha 78, the anode current runs around 1. The reason for this is the problem of the plate choke being series resonate at about 25mhz. Since the 8874 tubes for the 76 and 78 series alpha amps have gone up so high, i am constantly getting calls from people wanting to know if there is a substitute they can get for the 8874 tubes.
Ge fanuc automation computer numerical control products. The eto alpha 78 hf linear amplifier is an excellent choice for folks who are looking. Service manuals, schematics, eproms for electrical technicians. This idea should also work with the alpha 374a and alpha 78 amplifiers, which share. The alpha 76a is a selfcontained high frequency linear power ampli fier capable of continuous operation at dc plate input powers in excess of two kilowatts pep for. The eto alpha 78 hf linear amplifier is an excellent choice for folks who are. On the unit i tested, after careful adjusment i was able to get out around 1100. He gets about 1200 to 0 watts out on the pair of gi7b tubes.
Amplifier to your computer and then powering on the computer to dock with the graphics amplifier. Manuals, documents, and other information for your product are included in this section. View pdf dell alienware steam machine r2 regulatory. Replace the control printed circuit board or spindle amplifier. Panels are made from aluminum, holes are laser cut, panels are then powder coated light beige and silkscreened white. Service manuals, owners manuals, schematics, diagrams, datasheets, brochures online for free download and free to your amplifier, receiver, tape, cd, tuner, turntable and recorder. Gfk1546 1 1 chapter descriptions chapter 1 contains b65162e0225, alpha series servo amplifier module svm with fssb supplemental descriptions manual. Alpha 76 series description the pictures on the first page show in descending order are the 76standard, 76aall versions, 374a, and 78. While the tubes and the power supply in the alpha 78 are up to the job of delivering 1500 watts of cw rf output power, there are a couple of other problems that crop up at this level.
Presence knob adjusts the presence control of the simulated power amp section of the virtual guitar amplifier model. If youre interested in utilizing this service contact us and well be happy to arrange an inspection for you. Ass kn b ob adjusts the bass equalization control of the tone stack in the virtual guitar amplifier model. If you have a copy of an old fender guitar amplifier owners manual not shown in this archive, wed love to have a copy to post here. Page 1 page 2 page 3 page 4 page 5 page 6 page 7 page 8 page 9 page 10 page 11 page 12 page page 14 page 15 page 16 page 17 page 18 page 19 page 20 page 21 page 22 22.
The 8874 is far from the cheapest watt per buck, but they have a decent life and are readily available. Series ac servo amplifier descriptions manual gfz65162e03 september 1998. Attention collectors very rare alpha 70v with air cooled 3cx in very good working condition. Free heathkit diagrams, schematics, service manuals.
Thanks to the many visitors who have scanned documents and donated images to. Arcam alpha one manuals and user guides, amplifier, cd. Heathkit diagrams, schematics and service manuals download for free. Sent to alpha 2012 for factory test of current status. Master knob adjusts the master volume control of the virtual guitar amplifier model. N4uq offers upgrades and repairs to many amateur radio amplifiers manufactured by alpha power. Eto alpha stated in the operation manual that the unit could not be used on the 24mhz band. Looks and runs like an alpha 78 did when they were new.
B65162e fanuc ac servo amplifier description manual fanuc io manuals b618e fanuc io unit model a connection and maintenance manual. User manuals, guides and specifications for your arcam alpha one amplifier, cd player, other. Sn 1012 12 with only about one dozen ever made on the same chassis as alpha 70v and alpha 77. This is the only thoriated tungsten mesh filament amplifier alpha made. Since the plate current meter in the alpha 78 has a. For 1500w output, tune the amp with a keyer sending fast dots.
Scanned by iw1axr downloaded by amateur radio directory. View and download eto alpha 78 operating and technical manual online. Alpha 9500 linear amplifier manual details for fcc id dgvpa77df made by rf. I have had few other pieces of electronics in my 51 years as a ham as dependable. Eto alpha 78 operating and technical manual pdf download. The manual reset circuit did not provide a visible indicator when the. It provides continuous maximumlegalpower on all amateur hf bands with selftune capability. The alpha 76pa is my favorite because of the price and the great alpha quality.
This manual provides all information necessary to install and operate the alpha. In 1979 the alpha 76 was designed, closely following the designs of its predecessor, the 374,the 374 was not the same as the later 374a which had a bandpass, notune feature. At 1500 watts rf output and 60% efficiency typical for the alpha 78, the. For 17 meters, operation appears to be possible using the 21 mhz manual tuning mode. It is aging like me, but shows less signs of it than i do. To open downloaded files you need acrobat reader or similar pdf reader program. The best way to run the 78 is to tune up in the cw position to about 500w. Unfortunately, original hard copy manuals from this archive are no longer available. For sale alpha 78 amp k9zw station backup unit with. The k9zw shack alpha 78 amp story with varying frequency. This is the desciption page for the eto erhorn alpha 78 linear amplifier manual download, available on the sonic page. Alpha 78 linearamp sm service manual download, schematics.
Pa77df alpha 9500 linear amplifier user manual manual rf. These amps are much older than the warc bands, but can be used on some of them. Back to power amplifiers next amplifier last modified 20110918 etoalpha 78. Press the release clips and connect one end of the graphics cable to the external graphics port on the alienware graphics amplifier. In the stock alpha 78, this is a 25 ohm x 25 watt wirewound which. For 17 meters, operation appears to be possible using the 21 mhz manual tuning. The alpha 87a is extremely easy to install and operate, but failure to carry out each procedure exactly as described in the manual is likely to lead to amplifier damage which is not covered under warranty. B65150en04 fanuc alpha series ac servo parameter manual. Repairs and upgrades are available for the alpha77, 76, 78, 374 and 374a. Instant on all original except power supply has common electrolytic stack. Page 78 of pa77df alpha 9500 linear amplifier user manual manual rf. Gfl001 warnings, cautions, and notes as used in this publication warning warning notices are used in this publication to emphasize that hazardous voltages, currents.
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