Free returns are available for the shipping address you chose. I have gotten back a knight t60 that i had as a novice transmitter and wish i had an hq 129x to sit beside it to have my novice station back. The biggest and best ham radio classifieds on the web. All the other bands worked without any wiggling of the. When you slowly sweep around 455 khz by varying the frequency of the signal generator, there will be a large but very narrow peak in the audio at the. I have an hq170 and would not recommend this mod for them because it accomplishes nothing. Early production runs featured the hammarlund name and model in red lettering. Inc new york, ny, build 19381944, 3 pictures, 11 tubes, united states of america, schematics, semiconductors. Hammarlund hq129x professional receiver sch service. I really liked the performance of the hammarlund hq129x. They are good receivers in their own way but cannot provide the audio quality that the 100, 110, 145, and 160 can because the low ifs are too restrictive. Note that all of the front panel markings on this hq129x, like the one shown above, are in white. There is a lot of very interesting, useful software around for use with the rx320. Hammarlund hq129x hq129x communications receiver manual.
Most units had all the front panel labeling in white. Of the four radios, the hammarlund was easily the most interesting to work on. I read that my hq129x has three if stages and it compared it to another with only two if stages it said that it. Schematics of antique radios category is a curation of web resources on, atwater kent home page, mauritron technical services. Vintage hammarlund super pro tuning knob with numbers part ham radio. This receiver is a great medium wave performer and a ton of fun to operate. While the radio worked this way, the wiring was poorly executed and unreliable. Hammarlund hq129x ohio university faculty and staff websites. While it was designed for both am and cw ssb use, tuning in either cw or ssb signals can be frustrating.
The 0c3 regulator used in the hq129x is a coldcathode gas glow vr tube. Brands book lists the hq129x at 52pounds and the manual does not give any weight. I built the tube version and connected it to an hq129x similar to the one above. I do have an hq 150 to repair and restore, but somehow, it just isnt the same. If you look at the schematic you see the agc dc voltage heading north thru a 2. A good schematic and alignment service manual is a must. You can return the item for any reason in new and unused condition and get a full refund. Antique radio forums view topic hq129x restoration. My question has to do with updating the ac cord to a 3 wire grounded one. I can almost draw the darn schematic by memory now.
I was never really impressed with the hq170 as an am receiver, although it was great for ssb and not too bad on cw. Receiver hammarlund hq110a instruction and service information. View and download hammarlund hq100 service manual online. Later model hq100a is similar to the hq100, but with a separate bfo builtin bfo knob is between the tuning dials, and the optional clock is in the 24 hour format. The hammarlund hq120x general coverage receiver tunes medium wave and shortwave in six bands.
Buy, sell, trade hf and vhf equipment, towers, antennas, rotators and more. Inc new york, ny, build 19461953, 19 pictures, 12 schematics, 10 tubes, united states of america. When i got the receiver several months ago i needed to wiggle the bandswitch knob to get this band to work. The line running up from r48 is connected to the top instead of the bottom of the s4 switch. This circuit was originally in qst using a twin triode and a dual diode vacuum tube. Hyster electric lift truck n30xmxdr3, n45xmxr3 b264 parts manual download. I just recently got a hammarlund hq129x at an estate sale, and im almost done recapping it. We collect prices paid by real hams over the years to help you estimate the value of a used hammarlund hq129x. I read that my hq129x has three if stages and it compared it to another with only two if stages it said that it had two more tuned circuits. Heathkit bc1a am tuner page 4 the radioboard forums. Hammarlund hq129x receiver ham radio untested ebay. For sale is reprint of hammarlund hq129x communications receiver manual. In addition to the operating instructions, this book contains complete alignment instructions, parts list, a very handy voltage chart giving the proper voltage to ground for each pin of all the tubes, plus a nice big 11x17 foldout schematic. Com ham radio classified ads swap amateur radio hf.
Early in the winter of 2000 i finally fired up an old hammarlund hq129x 11tube receiver that works really nicely for am bcb because its got pretty good selectivity, great sound quality requires external speaker and its dial is calibrated every 10 khz in the am bcb so its easier to identify. Need hq129x bandswitch help hammarlund radiobanter. Hammarlund ultimate ham radio operation repair service. I had a hammarlund hq129x as my novice receiver back in the 60s. I had a hammarlund hq 129x as my novice receiver back in the 60s. Qsc diagrams, schematics and service manuals download for free. Details about hammarlund hq129x receiver ham radio untested.
I traded my hq170 for it originally for nostalgias sake, with an eye on am performance. There are louvers on both sides that give some support for handling but no handles or cutouts. We pride ourselves on welcoming radio hobby enthusiasts of all types, while offering unbiased, informative, and friendly discussion among the members. Introduction the hammarlund hq100 and later the hq100a was a very popular novice swl, general coverage radio from the 1960s. 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. Everything you need to know about the hammarlund hq140x receiver and more in one video. The hq129x is a solid welldesigned radio that purposely splits the bands, including the am broadcast band, so that the amateur radio sections of the shortwave bands will be favored.
I have two hq 129x receivers and i bought a set of original knobs for one. After looking at the schematics and determining there is current on the relay output on the back of the receiver. Hammarlund hq129x hq129x communications receiver manual quantity. I have gotten back a knight t60 that i had as a novice transmitter and wish i had an hq129x to sit beside it to have my novice station back. In spite of living within sight of nearly every new york am transmitter wabcs tower was close that we could hear its audio in our kitchen toaster, i logged more than 800 am stations on my 40svintage hammarlund hq129x receiver, which is still in storage at my sisters place.
The front panel of the hq129x pictured below is the older twocolor style. Am using a verified precise and calibrated frequency generator keypad digital entry. Hammarlund hq 129x crystal calibrator kit installation. Since you are injecting the if frequency, the dial position doesnt matter. Frankly, the hq129x is about average for receivers of that vintage where weight is concerned. Worldtime on amfone home about amfone ampx am audio vault. Describe your experience with the hammarlund hq120x and tell us why you give it the rating you did required. Oct 8, 20 i really liked the performance of the hammarlund hq129x. I have owned my hammarlund hq129x now for about two years. I do have an hq150 to repair and restore, but somehow, it just isnt the same. The worldwidedx radio forum was originally established in 2001. Let us know what you traded it for and help other ham operators. Inc new york, ny, build 19391945, 4 pictures, 6 schematics, 11 tubes, united states of america. Based on historic data, todays secondhand price of the hammarlund hq129x is around.
The detector, noise limiter, and audio preamplifier were wired along the lines of the hq129x for some reason, different tubes and all. Heathkit bc1a am tuner page 3 the radioboard forums. In 1945, when the hq129x was sold on the postwar market. It is the 1946 red letter edition, wholly stock with original knobs. If you want to join us and get repairing help please sign in or sign up by completing a simple electrical test.
Model hq145xc has fixed crystal position and the clock. This is a very nice combbound reprint of the 20 page operators manual for the hq129x receiver. Ive had two of these models over the years and truly enjoyed using them for amateur radio and shortwave listening. Ive got the user manual which includes a schematic. I quickly discovered why changing them was so common. Useful data on tvtesters, collins, drake, hammarlund, hallicrafters, national, heathkit, ef johnson. Hayseed hamfest manufactures brand new multisection can capacitors and recap kits for the hammarlund hq129x. A special tuning cap assembly was designed specifically for the receiver featuring 6 tuning cap sections and 9 bandspread cap sections. The manual i have for the 145 states that the sweep generator and an oscope are ideal for alignment, but lacking those a vtvm and a signal generator will work as well if not as well as. These manuals are available for download and free of charge. About us the worldwidedx radio forum was originally established in 2001. Hammarlundroberts, how to build the fivetube receiver 1925.
I am now accepting new manuals for inclusion in this archive. Foreign orders are welcome thanks to the ebay global shipping program, but your. No mercury vapor, just a mixture of gases such as neon and argon. The hammarlund hq129x is often found with larger, usersupplied, tuning knobs. The manual sendreceive switching of the receiver has become quite tiring since the dow key is being switched with the transmitter.
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