Henry 3ka amplifier manual pdf

The 3ka is a one stage amplifier designed for ssb, cw, fsk, and am operation on the frequencies between 3. Doing an ab swap still results in the right side not lighting. Henry 3ka conversion to 5k converting an ameritron al 1500 linear amplifier to dual 8877s henry 3k and 8k ultra manual henry 5k, 3k classic manuals. These manuals are available for download and free of charge. Great deals from henry radio in henryamplifierrepair. Here is a nice henry radio original plate transformer from a henry radio 3ka working when pulled sorry to say this one had some missing non replaceable parts i will be parting out this hole amplifier if you need something in particular please ask t201 transformer bama has the manual page has the transformer. I dont know why anyone would add harbach mods to a henry amp. These are transformers as used in the henry amplifiers.

If you want to see manuals from other manufactories you can click on the manufactory menu in the left side. The two models he has is a 2k4 he says has been upgrades to a 3ka with harbach choke etc. Distributor of bird technologies rf measurement equipment. The linear amplifier has two inputs input 1, input 2 to which you can connect two transceivers of any brand or type. Transistor rf amplifiers are becoming smaller and more reliable, however most are not built to commercial continuous dutycycle specifications like henry rf amplifiers are. Henry radio manufactured high power tube amplifiers for amateur radio, business, commercial, industrial and scientific use for nearly 50 years, but that part of our business closed in 2005.

Henry supports every amplifier ever built by them with many 2k models still in. Damon, w7md tucson, az 12162019 still using my henry 3k ultra purchased in the early 1990s. The 3k a is a one stage amplifier designed for ssb, cw, fsk, and am operation on the frequencies between 3. This is a pretty old type amp and i was wondering if there are any other owners out there. I intend to throw a pair of 4400s into the slot, but thats another story for later on. Also anybody know of any articles in mags or otherwise written about the amp. You can also click here to see all the manufactories that mods. Telstar electronics skywave dx350 rf linear amplifier. In this page you find schematic, users and instructions manuals, service manuals, technical supplement, leaf leads and other good stuff. Henry amplifiers use 12 vdc or 26 vdc relay control voltage, any resis. Henry model 3ka hf linear amplifier service manual. Henry radio is the manufacturer of high power amplifiers for ham radio, business radio, scientific, and industrial users. The power out of the 3ka you mention seems a bit low and may be because of weak tubes.

It has been stored, unused, in a closet since that time. Ok, ill admit i just may be a little bit biased, but i really think my henry 3k classic x mkii is the best amplifier i have ever owned and ive had quite a few including alpha 78, alpha 87a, heath sb220, sb200, ha14, yaesu ft2000b, hallicrafters ht45, homebrew 8s, homebrew 3500zs, and an early henry 2k. They are arranged in alphanumeric order beginning with aaa and ending with 999. The matchbox hd is an active interface amplifier that properly interfaces unbalanced consumer ihfstandard or semiprofessional audio equipment with professional studio gear. We also offer parts and accessories related to amplifiers, rf test equipment, business radios, ham radios, and other equipment. Henry radio hys i0jxx itb juma klm kohjinsha kris kuhne electronic k. I am attempting to repair a henry 3ka console with a pair of 3500zs for a friend. Free shipping on many items browse your favorite brands affordable prices. I often misplace items like this, so im hoping this will help me take better care of these. The following accessories should be included with the amplifier.

This listing of transformers and chokes is directly from the peter w. Eaibooodqs henry 3000d power generatorlinear amplifier frontview exhibit b page 1 cl ient hen. The original tube can still deliver max output, but i run it conservatively. The amplifier is supplied for operation from a 230 vac, 2 or 3 wire, 30 amp. I am now accepting new manuals for inclusion in this archive. The amplifier is supplied for operation from a 230 vac, 2 or 3 wire, 30 amp, 5060 hz circuit. The amplifier is a one piece floor console consisting of a complete rf deck and a power supply. I picked up my 3ka from henry after being refurbished by teds crew.

New henry cab30r vhf repeater amplifier 144174 mhz. The fuse is located inside the amplifier remove the lower cover. I have had to do very minor repairs during the 8 years. Dc voltages shown are after typical bridge rectification and choke input power supplies as the henry is designed. Get the best deals on henry radio amplifier when you shop the largest online selection at. Visit us online for more information or to download service manuals. When reading the manual, i got the impression that, over the years, the amplifiers design. Discussion in amateur radio amplifiers started by w4eky, nov 7, 20. I hope they might help others looking for the same info as well. Henry radio 8k ultra amplifier being tested into a dummy load. Henry 2k3 kilowatt linear amp rebuild by me, bear, wb2gcr. This was the top of the line amplifier in the 1960s. Dc power cable, 8 pin, 36 inches for henry amplifiers. Find the user manual you need for your audio device and more at manualsonline.

Amphf henry radio 2k2 console amp for sale classic henry radio 2k2 console amplifier for sale. All manuals include schematics unless otherwise noted. View and download henry radio 2kd5 operating and maintenance manual online. Henry c100dseries uhf 100 watt amplifiers repeater builder. Manual for the henry model 3ka hf linear amplifier. Latest addition to the shack is an henry 2k4 with peter dahl hipersil transformer. This is the saga of the rebuild of an old 1972 henry 2k3 kilowatt linear amp. Henry 3ka console amplifier i continue to search for a vintage henry 3ka amplifier for local pickup in the new york, new jersey, or northeast pennsylvania areas either with or without tubes for a planned retrofit project. This amp tunes up very nice and i drive it with about 60 watts and it measures a full 1500 watts output, i suppose it would deliver more if driven harder, but i choose not to and this allows the amp to coast along at the limit. Pulling the right unlit tube, the left tube still lights. With the hv transformer running on the higher ssb voltage and no load other than the bleeder resistors 3800v 50ma, 200w, the hv transformer gets pretty hot. When i received this gem the filament connections on the 3500z finals was melted loose due to failure of the original blower motor. I have an early 70s vintage henry 3ka amplifier that i am rebuilding.

Henry radio 3ka download your lost manuals for free. Henry 1kd5 linear amplifie service manual download. Henry radio linear amplifiers operating and maintenance manual. The matchbox hd is a bidirectional unit, with four independent amplifiers providing stereo input and output audio interface. If anyone out there has this amp and knows the settings for these bands, please let me know ill be relaying the info to him. Dont see much traffic posted about amps so i thought id crank up some activity. Think of the preeffects section like the pedals that run into your amp, and the posteffects section as any stereo studio effects you would place onto your amp after it is micd up either on a live mixing board, or in a recording studio. View and download henry radio 3k ultra operating and maintenance manual online. I have heard that henry will use 8877s in the new ones. Service manuals, schematics, eproms for electrical technicians.

To open downloaded files you need acrobat reader or similar pdf reader. Please read the instruction manual carefully before operating the new equipment. He needs to know the factory default tune and load settings for all of the bands 80, 75, 40, 20, 15, and 10 meters, otherwise he cannot tune the amp up. Henry radio 3k ultra operating and maintenance manual pdf.

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