hammarlund
the hammarlund hq - 180xe is a hammarlund hq - 180 with the addition of 11 crystal controlled ...
oscar hammarlund started the hammarlund manufacturing company in 1910. in the 1920´s the company, through an affiliate, hammarlund - roberts, inc. , manufactured broadcast receivers, and
apc25 variable capacitor, panel mount, 2. 8 - 17 pf, hammarlund
apc75 variable capacitor, panel mount, 4. 6 - 75 pf, hammarlund
comet pro var. 5 according to receiver - c hammarlund mfg. co .
you can write your own review of the hammarlund super pro sp - 210x .
hallicrafters vs hammarlund, ... super pros, that is, ...
you can write your own review of the hammarlund hq - 180 (a) .
hammarlund mfg. co. marketed components such as variable capacitors, coils and dials. the hammarlund - roberts name disappeared about 1932. the two companies used the same address on
hammarlund manufacturer hammarlund item condition untested, missing parts or complete system required for testing accessories missing accessories (software, cables, manual, remote, etc .) box condition .
apc25 variable capacitor, panel mount, 2. 8 - 17 pf, mfr: hammarlund
apc75 variable capacitor, panel mount, 4. 6 - 75 pf, mfr: hammarlund
hammarlund mfg. co. , inc the incredible pre - war' super - pro' comprehensive history, serial number analysis, restoration details. includes info on the hammarlund comet pro
berglund be, barnekow l, hammarlund d, sandgren p, snowball if. 1996 .
hammarlund manufacturer hammarlund item condition untested, missing parts or complete system required for testing accessories missing accessories (software, cables, manual, remote, etc .) box condition ...
the hammarlund comet pro var. 6 (according to communications receivers by moore) is ...
model: comet pro [ var. 5 ] - hammarlund mfg. co. inc. ; new
the hammarlund hq - 105tr transceiver has a general coverage receiver section, tuning. 54 to ...
1968 ad from qst (september 1968) for hammarlund, giving its location in mars hill, nc .
hammarlund radio communications receiver. it is untested and will need to be cleaned up. radio communications receiver .
the hammarlund comet pro var. 8 (according to communications receivers by moore) is the ba ...
the hammarlund comet pro var. 7 (according to communications receivers by moore) is the 22 ...
the hammarlund hq - 200 general coverage tunes from 0. 540 to 30 mhz in four r ...
wickes engineering & construction co. - hammarlund mfg. co. , inc. - r - 270 / frr
the hammarlund mr 50 - x is a crystal controlled, single channel monitor, operating in the 1 ...
urltoken another site with hammarlund manuals urltoken another don' t be afraid of the dejavu reader. it is reliable and trustworthy .
hammarlund hq100ac receiver my 1963 original hammarlund communications receiver. this receiver covers. 54 to 30mhz. it features an rf preamplifer, 2 if stages, a true bfo circuit and a q multiplier for additional selectivity. this receiver still works great. more photo s
oscar hammarlund’s management style was “family - like”; he frequently visited the productions lines and knew every person who worked for him by name. he passed away in 1945. the company, however, continued to flourish under the direction of lloyd hammarlund, his son .
for model comet pro var. 5 (according to moore), hammarlund mfg. co. inc. ; new york, ny
hammarlund hq200 radio powers up and plays. these have been sitting on a shelf in my house for several years. pick up ok .
founder oscar hammarlund died in 1945. his son, lloyd a hammarlund, who had been actively managing the company since the early 1930´s, continued the family´s involvement. stuart meyer, w2ghk, a mobile two - way radio expert, guidet the company from 1960 to 1966 .
4 of the coils with red wire are marked bud and one with red wire is marked hammarlund mfg. co. new york usa .
we hope to provide history information both on the hammarlund company and hammarlund products. the small group that is working on the website cannot come up with everything, so we solicit contributions of past articles or advertisements that we can incorporate. proper recognition and credit will be given all .
likely an example of corporate wishful thinking, hammarlund products were supposedly so preeminent in the pioneering era of radio that they became a part of the language of radio. as the story goes, early radio enthusiasts affectionately referred to hammarlund products as
ham
products, and called themselves
ham
operators. in truth, hammarlund was a minor and barely known company at the time
ham
started to be used .
because the company had specialized in high - frequency capacitors for use in commercial and military equipment, nearly 90 percent of all american electronic military gear produced during the early part of world war ii incorporated hammarlund variable capacitors, until the other manufacturers could be taught the hammarlund techniques and began making them. at the peak of wartime production the famous hammarlund “apc” variable capacitor was produced at the rate of one million a month by ten different manufacturers .
in the 1960’s, hammarlund produced the basic faa airport control tower vhf am receiver, designed for the 108 - 132 mhz portion of the spectrum .
while at hammarlund, stuart was primarily responsible for expanding the product line to include land - mobile two - way radio and high frequency equipment. .
hammarlund hq - 110 radio powers up and plays. these have been sitting on a shelf in my house for several years. pick up ok .
this is for 36 hammarlund plug in coils consisting of 4, 5 and 6 pin types. © electrojunk. we specialize in offbeat antique electronic junk .
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many of their needs. based on several generations of experience and know - how, the hammarlund manufacturing co. reached high levels of achievement during its lifetime .
hammarlund was justifyably proud of there penetration of the market. this list of comet - pro users appears in their ad in the june 1933 issue of qst :
this radio doesn' t weigh nearly as much as the sx - 101 from hallicrafters though. hammarlund probably uses more aluminum then hallicrafters did in that era .
beginning in 1955 hammarlund manufactured a full line of receivers, most of them bearing the hq prefix. only the above models are descendents of the hq - 120 .
hammarlund model hq - 100a c vintage general coverage ham radio receiver. we have no way to comprehensively test this unit. so its sold as is, as pictured .
jenny hammarlund (london) joined kkr in 2016 and is a member of the european real estate team. prior to joining kkr, ms. hammarlund was a director at värde partners in london where she was focused on sourcing and executing real estate investments across europe. previously, ms. hammarlund was a vice president at lehman brothers real estate partners in new york where she was focused on evaluating and executing real estate investments in the us. she holds an mba from columbia business school and speaks four languages .
comprehensive history, circuit details with comparison to the hammarlund sp - 600, restoration details, best features of each receiver. yes! you can vote for your favorite super pro
an early comet, with it' s hammarlund supplied electro - dynamic speaker. it' s an eight - tube superhet with on - board ac power supply. the radio tuned 545khz to 20mhz using five sets of plug - in coils. the variable capacitors, plug - in ceramic coil forms, and double tuned if transformers were all hammarlund products .
the hammarlund comet pro (later model, variation 5 according to communicatioins receivers by moore) covers 1, 5 to 20 mhz in four bands in am and cw (bfo) .
generally, it' s believed that hammarlund' s sp - 600 was introduced in 1950 but that may have been an
available to the public
announcement. hammarlund was often slow to release official announcements. as an example, fifteen years earlier, hammarlund had produced the spa receiver, a receiver identical to the sp - 10 super pro, on a signal corps contract in june 1935. however, they didn' t officially announce the
new
super pro sp - 10 receiver to the public until nine months later, in march 1936 .
hammarlund mfg. co. , new york city. electronic assistance corp. took them over around 1968 and sold out everything by 1973. the hammarlund factory was still located in mars hill, nc, but electronic assistance corp. also had a large building in red bank, nj. it was an old building with multiple floors. usually hammarlund used the letter' x' to designate a model which included a crystal calibrator, and the letter' c' to describe models including a clock. the letter' a' usually meant a significant circuit upgrade .
the first hammarlund electronic - related product was the variable air capacitor developed in 1916, not as a product for a specific application but as a construction item for the experimenter who furnished the plans .
clean and good working hammarlund hq - 100. tested with a g5rv antenna and brought up slowly with a variac. powered up and works good. nice audio. excellent reception. estate item .
this is original hammarlund manufacture in the original bag. the thumb screw is not original - i got a bunch of modern stainless 8 - 35 3 / 4
knurled thumb screws for them .
due to circumstances beyond our control the hammarlund historian site went down several years ago. we had been working, slowly, to reconstruct the site and information, but have renewed our efforts now .
the hallicrafters r - 274 (sx - 73) version of the hammarlund sp - 600 is a great performer and might become a regular daily band cruiser here if i can make some room .
the last manufacturing facility at mars hill, north carolina with it’s production line manufacturing capabilities and bright modern offices would have seemed unbelievable to oscar hammarlund in the early years after founding the company in 1910 .
hammarlund had begun transferring its manufacturing operations from new york city to mars hill, nc, in 1951 and completed the move in 1959. by 1965 all the management functions had also moved to mars hill. during its final two decades hammarlund was sold a number of times. telechrome purchased them in the late 1950´s and then sold to giannini scientific in 1962 and who in turn sold to electronic assistance corporation in the late 1960´s .
in 1925 the company moved to 424 west 33 rd st. in manhattan, where the first hammarlund - roberts radio kits were built. these kits, designed for construction and broadcast listening by experimenters incorporated capacitors, coils and other related items manufactured by hammarlund. they were generally considered to be the finest and most successful kit - type radio receivers of all time, with the circuit technique ahead of nearly all ready - made receivers .
this is a very nice comb bound reprint of the 40 page operation & service manual for the hammarlund sp - 600 jx17 diversity receiver. if you have a jx - 17, this is the book to have .
since hammarlund was also closely working with the signal corps on better stability in their receivers, just how much of the sp - 600 design was influenced by the signal corps is unknown (other than the obvious. )
estate sale find
hammarlund model hq - 110 vintage general coverage ham radio receiver sn165. item powers on the clock works but missing plastic. not to familiar with the functions of this item. i hooked ...
late in 1931 hammarlund introduced the
comet
receiver, perhaps the first superheterodyne communications receiver. they followed in the spring of 1932 with the improved
comet pro
model which continued in production, with variations, until 1935 .
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for model comet pro var. 5 (according to moore), hammarlund mfg. co. inc. ; new york, ny
, title :
hammarlund mfg. co. comet pro from martin bösch (1 )
, ite :
1
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500
, mh :
278. 0
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, notes :
for model comet pro var. 5 (according to moore), hammarlund mfg. co. inc. ; new york, ny
, title :
hammarlund mfg. co. comet pro from martin bösch (1 )
, ite :
1
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500
, mh :
232. 0
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for model comet pro var. 5 (according to moore), hammarlund mfg. co. inc. ; new york, ny
, title :
hammarlund mfg. co. comet pro from martin bösch (1 )
, ite :
1
}
all listed radios etc. from hammarlund mfg. co. inc. ; new york, ny here you find 138 models, 82 with images and 56 with schematics for wireless sets etc. in french: tsf for télégraphie sans fil .
time started running out for hammarlund, as it did for the other communication receiver manufacturers, in the 1950´s and 1960´s. the company introduced a solid - state ham receiver, the
hq - 215
, in 1967 but it was not successful and they dropped out of the ham market after that althought continuing to sell the
hq - 180
and the
sp - 600 until about 1973. the hammarlund name then disappeared from the scene after more than 60 years .
really excellent condition hammarlund hq - 170a receiver and s - 200 speaker. all original and lights up. but no other testing has been done. this is a great addition to the collection. i am not sure if i ...
sounds like maybe someone replaced the control at some point and got the outside legs swapped in the process. i' ve never touched a comet pro, but don' t know any reason why that hammarlund should work backwards from all the rest .
includes a beautiful working hammarlund clock. no dents or rust to affect pperation. lights up and you can hear static / hum but does not receive signals. requires a remote speaker (not included). you will be responsible for these fees .
the biggest issue is that the plastic window over the
h
hammarlund logo is a bit warped and cracked in a few places. also, the label on the back of the cabinet is pretty torn. this item has been tes ...
( this is a very nice comb bound reprint of the 43 page operation & service manual for the hammarlund sp - 600 jx21a am & ssb receiver. the schematic diagram consists of page 1 & 2 facing and page 2 & 3 faci ...
hammarlund hq - 145 in what appears to be unmolested condition. i didn' t clean it up at all but i did test its operation. i tested a few tubes in the front end and at least one 6bz6 and 6al5 are very weak .
{ gbw :
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for model comet pro var. 5 (according to moore), hammarlund mfg. co. inc. ; new york, ny: [ br ] arrl 1934, page xiv
, title :
hammarlund mfg. co. comet pro uploaded by otto frosinn (2 )
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for model comet pro var. 5 (according to moore), hammarlund mfg. co. inc. ; new york, ny: [ br ] projektions - hauptabstimmskala, hilfsskalen im sichtfenster
, title :
hammarlund mfg. co. comet pro from martin bösch (1 )
, ite :
1
}
the first official contract for the hammarlund r - 274a is order no. 1689 - phila - 51 - 01 from september, 1951. this receiver was also designated as the sp - 600 jx - 1 by hammarlund. there was an earlier contract for the signal corps but it was for a hammarlund r - 483 / frr (sp - 600 jx - 5) on contract 21478 - phila - 50 but the build date was november, 1951. other signal corps contracts are order no. 3376 - phila - 52, originally dating from 1952 but this contract was built - on for both r - 274a and r - 274c receivers and sp - 600 versions run up to the jx - 26 built in 1953. the r - 274b receivers were built for the u. s. navy and are on contract nobsr52039 from 1952 (sp - 600 jx - 6) and nobsr71369 (sp - 600 jx - 35) from 1956. there are seven contracts for hammarlund r - 274a, b and c receivers spanning from 1951 up to 1956 .
up for sale is an original used hammarlund hq - 170 receiver s647 slot frequency knob with red arrow indicator. the red arrow indicator has a few small nicks in the paint. however, the visible pointer surface when the knob is installed is in excellent condition .
design of the best known and long lived receiver in the hammarlund line began in 1933. this was to be the ultimate receiver and was originally called the
comet super pro
but it eventually became simply the
super pro
. like national, hammarlund took an uncompromising approach to receiver design. they used special custom built components. they designed a unique bandswitching system, special if transformers, and a twelve gang tuning capacitor. originally scheduled for release in early 1935, the receiver was not ready for delivery until mid - 1936 .
this hammarlund hq - 180ac radio was designed for serious shortwave and ham listening. built near the end of the great age of tube - powered
boatanchors .
it uses eighteen tubes and has special circuitry and controls that you won' t find on consumer radios .
the only other notable receiver in the hammarlund line was the
pro - 310
which appeared briefly from 1955 - 57. it was a top - of - the - line receiver with a unique two dial tuning system. for unknown reasons its life was very short .
in an earlier article about your editor' s experience with the alaska communications system (part of the army signal corp) i noted that the main receivers used were hammarlund super - pros. we had other brands as well but the super - pros were the most stable and dependable .
hammarlund continuously updated the
super pro
and its descendents were in production until 1937. the original 1936 model was designated the sp - 10 series. the sp - 100 appeared in 1937, sp - 200 in 1939, the sp - 400 in 1946 and the sp600 in 1950 .
the biggest issue is that the plastic window over the
h
hammarlund logo is a bit warped and cracked in a few places. also, the label on the back of the cabinet is pretty torn. this item has been tested by our technician, a ham radio operator of more than 55 years .
this information was compiled with help from stuart meyer w2ghk (now a silent key) who was employed by hammarlund from 1960 until 1966. he started out as chief engineer and rose through the ranks to president of the company. stuart was gracious with time spent on the telephone and in correspondence from approximately 1987 until 1993 .
the claims and counter claims expounded in period advertising often make interesting reading. for example, in october 1933 qst, mcmurdo silver touts that admiral byrd has chosen his 5a receiver for his next antarctic expedition. two months later hammarlund published a testimonial radiogram from an arctic expedition complete with pictures of a walrus and an eskimo .
really excellent condition hammarlund hq - 170a receiver and s - 200 speaker. all original and lights up. but no other testing has been done. this is a great addition to the collection. i am not sure if it was a standard case or not but this one has the cover that opens on the top .
the founder of the hammarlund manufacturing co. , oscar hammarlund was born in 1861 in stockholm, sweden. as a student he won the admiration of his classmates as well as high honors for his engineering ability. after completing technical college he went to work as a special tool designer and inspector of electrical instruments for the l. m. ericsson co. of stockholm, a leading manufacturer and the originator of the french - type telephone. shortly after taking this job, he received an offer for a similar position with the elgin watch co. in the united states, and accepted the opportunity to come to this country. he arrived in 1882 .
this major addition to the hammarlund manufacturing facility brought the production space up to approximately 100, 000 square feet. the plant was fairly self - sufficient, producing a number of screw machine parts and mechanical components. a complete plating facility, paint shop and a silk - screen capability for panels minimized the dependency on outside vendors .
suffixes - when the signal corps and the usn began ordering the hammarlund sp - 600 version of the receiver, the r - 274 designation had already been assigned to hallicrafters' production. so, rather than assign an entirely different number to the hammarlund sp - 600, these receivers were given suffix letters of a (signal corps ,) b (usn) and c (signal corps .) even though the non - suffix designation had been assigned to hallicrafters, their next new contract receivers would be designated r - 274d / frr. the next known hallicrafters' contract for the r - 274d was order no. 3464 - phila - 52 from 1952 .
i found a really nice condition hammarlund
super pro
for sale. what is the value and desirablilty of this unit? i think it is the model with the built in power supply but will look it over more carefully on friday. any input would be appreciated and i hope i posted this in the right section. thanks .
it' s probable that hammarlund was supplying some sp - 600 - type receivers to the signal corps for testing and evaluation (and getting feedback for what was needed) long before the official announcement in 1950. however, there are no official contracts for sp - 600 receivers prior to 1950 and no contract build dates earlier than september, 1951 .
sweden, blues hall of fame ® legendary, master and great blues artists of sweden inductions for 11 - 24 - 2015 iincludes: : stampen arne swedin joakim barcheus thomas hammarlund helge tallqvist jo' buddy juha k. raulamo tomi leino homesick mack jan sjostrom woodhowlers thomas prim peter boon gustav almstedt peter borgstrom peter sjovall karin rudefelt lennart olofsson tobias magnusson peter borgstrom
hammarlund was most famous for it’s amateur / short - wave receiver line. the hq - 120 / 129 series. the hq - 120 was truly ahead of its time when first introduced in december, 1938. it featured coverage from 540 kc to 30 mc with calibrated amateur band spread. this feature of calibrated band spread, including a 300 - degree readout scale, was an industry first. other innovations pioneered by hammarlund included a front - panel adjustable antenna trimmer, calibrated front - panel bfo, and the famous multi - bandwidth crystal filter. the noise limiter was particularly useful on the higher frequencies. a special version of the receiver, designated the rbg, was built for the u. s. navy .
i have added eight pages of nice clear photos. the fourth book is t. o. 31r2 - 4 - 101 - 4 (aka 31r2 - 4 - 17 - 4, t. o. 16 - 45 - 224) illustrated parts breakdown sp - 600 - jx - 21 (hammarlund) dated 15 january 1956. it ha ...
sweden, blues hall of fame ® legendary, master and great blues artists of sweden inductions for 11 - 24 - 2015 iincludes: : stampen arne swedin joakim barcheus thomas hammarlund helge tallqvist jo' buddy juha k. raulamo tomi leino homesick mack jan sjostrom woodhowlers thomas prim peter boon gustav almstedt pe ter borgstrom peter sjovall karin rudefelt lennart olofsson tobias magnusson peter borgstr om
the hammarlund hq - 150 general coverage receiver tunes from 540 to 30000 khz in six ranges. 54 - 1. 32, 1. 32 - 3. 2, 3. 2 - 5. 7, 5. 7 - 10, 10 - 18 and 18 - 31 mhz. this radio does not have a built in speaker. i picked ...
while designed as a communications re - ceiver, hammarlund promoted a home version in a console cabinet during the mid - thirties. it probably never became popular, not only because of the cost but also due to the need to change bands in the middle of the standard broadcast band, and the number of controls which would have certainly confused the non - technical user .
i am one of the amers who swears by this radio. at 16 kc (or even at 8 kc) if bandwidth, it has the rich, creamy smooth am sound and warm tube overtones that you just don' t get from most communications receivers. in terms of pleasant audio, i have put it up against an sx28 - and the hammarlund won .
in 1951, hammarlund released the sp - 600 jx receiver that incorporated all of the signal corps upgrades along with totally redesigning the entire super pro receiver. however, the signal corps was also beginning to use the collins 51j receivers in their rtty communications. ultimately, the sc used collins receivers for rtty (in most instances) and the sp - 600 for general surveillance .
during the early post world war ii years, hammarlund developed a product line designated “centralized operation control”, or “coc”. this was a basic system designed to control various devices from remote locations. the widest application was in wire line, microwave and land - mobile radio. this product enjoyed considerable popularity until the early 1960’s, when it was overtaken by the more advanced digital systems .
- with examples of both receivers available to the signal corps from 1950 up to about 1952 it seemed that the signal corps favored the hammarlund sp - 600 over the hallicrafters r - 274. over the next decade literally tens of thousands of sp - 600s were produced for the military but the hallicrafters' version was produced in just a couple of contracts from 1949 into the early 1950s .
( this is a very nice comb bound reprint of the 43 page operation & service manual for the hammarlund sp - 600 jx21a am & ssb receiver. the schematic diagram consists of page 1 & 2 facing and page 2 & 3 facing, the connection diagram (page 1 & 2 facing and page 2 & 3 facing) is a line drawing of the under chassis wiring) .
oscar hammarlund received the assignment to design a means of overcoming the handicap of the troublesome stylus. he solved the problem by developing a propelling pencil, and inadvertently invented the present - day automatic advancing lead pencil. at the time he didn’t realize the ultimate possibilities of his invention. it was the first of many important items that he eventually was to create and see become highly successful products .
in 1920 hammarlund moved to 18 th st. in new york city; there were approximately 50 employees on the payroll. at the time he developed a new automatic machine for making spring clips to go into the tops of christmas decorations. the clip expanded to provide a support for the decoration. as a result, this style of clip exists today to permit easier decoration of our christmas trees .
the first hammarlund product to use printed - circuit board construction was the pro - 310, introduced in 1955. it covered from 550 khz to 35. 5 mhz and featured double - conversion and a constant - calibration band spread. unfortunately, the life of the pro - 310 was short with only one production run of 1, 000 units, and was last advertised in july, 1956 .
i have added eight pages of nice clear photos. the fourth book is t. o. 31r2 - 4 - 101 - 4 (aka 31r2 - 4 - 17 - 4, t. o. 16 - 45 - 224) illustrated parts breakdown sp - 600 - jx - 21 (hammarlund) dated 15 january 1956. it has line drawings showing where every part is in the radio .
below: a bunch of forlorn - looking r - 390’s, and some ham radio equipment: a hammarlund (hq - 180 ?) receiver and a hallicrafters sr - 2000 transceiver (its power supply is in the other room on top of a t - 368) below: there was also some ratt gear there. most likely originally paired with the t - 368’s and r - 390’s at one point .
note: throughout the remainder of this article, the hallicrafters' receiver designation r - 274 is used almost exclusively to avoid repetitious listing of both designations. just remember that the earliest version was the r - 274 receiver and the later version was designated as the r - 274d receiver. also, hammarlund r - 274a, b or c receivers are referred to as
sp - 600
for the same reason .
the hammarlund hq - 150 general coverage receiver tunes from 540 to 30000 khz in six ranges. 54 - 1. 32, 1. 32 - 3. 2, 3. 2 - 5. 7, 5. 7 - 10, 10 - 18 and 18 - 31 mhz. this radio does not have a built in speaker. i picked this up from a local estate sale where the man rebuilt these tube radios .
estate sale find
hammarlund model hq - 110 vintage general coverage ham radio receiver sn165. item powers on the clock works but missing plastic. not to familiar with the functions of this item. i hooked up a speaker and heard static that all the testing i have done. not selling for parts cause the item powers on. any questions please message me. thanks for looking item has a hq - 100 back cover but the item is a hq - 110
the hammarlund company made high - quality communications receivers from the 1930s through the 1970s. model hq - 180a was made from 1963 - 1972. this particular set was sold on september 16, 1966, according to its manual, where the original owner wrote the date of purchase and serial number. model hq - 180ac is the same as hq - 180a, except it has an optional 24 - hour analog clock / timer, visible at upper left in the front photo .
the first commercially produced short - wave superheterodyne receiver, the comet - pro was a hammarlund pioneered product. it was introduced in april of 1932, and was designed as an eight - tube receiver covering the range of 14 - 200 meters with four sets of two coils each. by 1936, the comet - pro was in use all over the world by thousands of commercial operators, in broadcast stations and by many amateur radio operators. all the important expeditions included one as part of their standard equipment .
very rare 1933 hammarlund comet pro with complete set of plug - in coils in working condition. the cabinet and front panel have been repainted in the original black wrinkle satin finish. some rust on the underside and chassis. here' s your chance to have a scarce pre - war receiver that won' t be found on that on - line auction. the receiver is being offered on a try before buy, cash and carry, pick up only basis in western pennsylvania. no shipping. $ 350 obo .
the company was originally located in a loft on fulton st. in manhattan. in order to provide work for his small group of skilled people, hammarlund built a weird assortment of products, ranging from the “anti - window rattler” which was merely slipped in between a window frame and the window to hold it tight after the wood had shrunk, to the “bango” a protection device inserted in windows so that if it were disturbed during the night by an intruder, a blank cartridge would be set off to awaken the household .
hammarlund entered the land - mobile two - way radio market in 1960, producing many units under the name “outercom”. the first model to go into production was the fm - 50, a 35 watt unit covering the 150 - 170 mhz band. this was followed by the fm - 60 with a frequency range of 25 - 54 mhz and a rated power output of 50 watts. the company also produced a high - band (150 - 174mhz) 100 watt desk - top amplifier designed to increase the power output of the fm - 50 .
following through on improvements to the hq - 170 / 180 receiver line, in 1960 hammarlund introduced a “lamb” type noise blanker. this device worked on jim lamb’s original principle of “punching a hole” in the signal to virtually eliminate the effect of ignition - noise interference. a special version of this noise silencer, which was marketed as a “noise immunizer”, was developed for the coast guard for use with their numerous national hro type receivers in the vicinity of loran stations. the device was extremely effective in reducing loran pulse interference in the 160 - meter band .
hammarlund hc - 10 ssb adapter function: provides ssb reception and selectivity for receivers without a product detector. has slot filter & passband tuning. power supply: internal installation: plugs into a receiver' s last if tube socket. speaker connects to the hc - 10. requirements: receiver must have if frequency between 450 and 500 kc. new price / year: $ 149 / 1959 size: 9. 5
h x 9. 25
w x 7. 1
d approx. weight: 15 lbs tube complement: 10 tubes .
hope i' m successful with these pics of the mystery receiver: urltoken urltoken urltoken urltoken urltoken additional info: the bandspead dial (disc) has the 15 meter legend on it, and hammarlund added the 15m to bandspread after the hq - 129' s initial release / production. maybe the former owner had disassembled this rx to install the
updated
( although damaged) bandspread dial. and with a little more detective work, i discovered that the latest patent date listed on the id plate (2211718) was issued on august 13, 1940 .
yeah, the tube line - up is not like any other hammarlund i' ve been able to find. btw, the 4 - 6sj7' s that i called out in the first post, are actually 4 - 6sk7' s... .. duh... . guess i' ll chalk that
oops
up to clumsy fat fingers on the keyboard. and, i' ve never run across the threaded - header electrolytics located behind the tuning capacitor enclosure (shown on the chassis layout plate) in a 120 or 129 .
- in 1948, hammarlund published an advertisement (see photo below - left) for the series 600 super pro, the spc - 600 - x, receiver that apparently had all of the features the signal corps wanted and most of the features found on the later sp - 600 receiver. the advertising artwork shows the 1948 concept of the sp - 600. the first actual signal corps contract appears to be contract order number 18566 - phila - 49 - 7, dating from 1949 and assigned to
the hallicrafters co .
( see tag photo lower - right. )
since the contracts only accounted for a relatively small quantity of receivers and hallicrafters had obviously done substantial production line tooling and had set up suppliers for the required parts, it was not going to be profitable if only a couple of contracts resulted from these expenditures. like other manufacturers that provided the military with radio equipment, e. g. hammarlund and their sp - 600, hallicrafters decided to offer the r - 274d to the commercial and amateur market. to avoid any confusion as to the intended customers, these hallicrafters receivers were given a new designation of sx - 73 .
hammarlund hq - 200 type: general coverage modes: am / cw / ssb tubes / stages: 8 + 5 diodes / 1 - rf, 2 - if audio output: 6aq5 / 2w product detector: none filter: q - multiplier new price / year: $ 229. 50 / 1969 - 1972 size: 8. 0
h x 16. 5
w x 9. 25
d approx. weight: 27 lbs tube complement: 8 tubes (6bz6 rf amp, 6ba6 if1, 6ba6 if2), 2 diodes, 2 rectifiers, 1 zener .
hammarlund hq - 215 type: ham bands only modes: am / cw / ssb all solid state / stages: x - rf, x - if audio output: 1. 5w product detector: yes filter: xtal, mechanical (2. 1 khz, others optional) new price / year: $ 399. 99 - $ 529. 50 / 1967 - 1969 size: 7. 0
h x 16. 0
w x 14. 0
d approx. weight: 16 lbs semiconductor complement: 26 transistors, 13 diodes, 2 zener diode regulators .
the citizens band radio market was entered into in the early 1960’s, and hammarlund was one of the first companies to offer a synthesized 23 - channel transceiver, also produced under private label for lafayette, allied radio and radio shack. in addition, the hq - 100 general coverage receiver was redesigned to include a one - tube transmitter modulated by the receiver audio section. this unit, designated the hq - 105tr, was intended for single - channel transceiving in the 10 and 11 meter bands. a six - channel crystal - controlled unit was also produced for business radio and industrial radio use in the cb band .
hammarlund hq - 140xa type: general coverage modes: am / cw tubes / stages: 11 / 1 - rf, 3 - if audio output: 6v6 / 2. 0w product detector: none filter: xtal new price / year: $ 249 / 1956 - 1958 size: 11. 5
h x 20. 25
w x 13. 5
d approx. weight: 60 lbs tube complement: 6c4 osc, 6ba6 rf, 6be6 mixer, (3) 6ba6 if, 6al5 det / avc / nl, 12au7 af1 / bfo, 6v6 af out, 0c3 vr, 5u4 rect .
/. many models of hammarlund commercial super pro receivers were put into field use prior to the assignment of signal corps nomenclature to such receivers. the text of this manual is also applicable to some of these super pro receivers, namely, the sp - 200 and sp - 210 series. table iii indicates the relationship between super pro and signal corps nomenclature for all receivers to which this manual is applicable. the super pro receivers of the sp - 10 and sp - 110 series use different electrical components and circuits and have characteristics different from receivers listed in table iii and, therefore, are not covered by this manual .
hammarlund hq - 140x type: general coverage modes: am / cw tubes / stages: 11 / 1 - rf, 3 - if audio output: 6v6 / 2. 0w product detector: none filter: xtal new price / year: $ 264. 50 / 1953 - 1955 size: 11. 5
h x 20. 25
w x 13. 5
d approx. weight: 60 lbs tube complement: 6c4 osc, 6ba6 rf, 6be6 mixer, (3) 6ba6 if, 6al5 det / avc / nl, 12au7 af1 / bfo, 6v6 af out, 0c3 vr, 5u4 rect .
hammarlund hq - 129x type: general coverage modes: am / cw tubes / stages: 11 / 1 - rf, 3 - if audio output: 6v6 / 2. 0w product detector: none filter: xtal new price / year: $ 129 - $ 189 / 1946 - 1953 size: 11. 5
x20. 25
x13. 5
approx. weight: 60 lbs tube complement: 6ss7 rf, 6k8 conv / 1st det / osc, (3) 6ss7 if, 6h6 det / nl, 6sn7 af1 / s - meter, 6v6 af out, 6sj7 bfo, 0c3 vr, 5u4 rect .
the right knob of this pair controls the automatic volume control (avc). a basic circuit found in most modern receivers, avc automatically compensates for the strength of various signals, so that a strong local station won' t blast your head off compared to milder signals. in consumer radios, avc is always on. the hammarlund lets you turn it off, if desired, or choose from three settings (slow, medium, fast) for different kinds of listening. the signal meter does not respond if avc is turned off. like
magic tuning eyes ,
signal meters depend on voltages generated by the avc circuit .
have been a ham for over 60 years, and am a collector of
boatanchors
, i. e. vintage hf receivers, and though the hq 180 and 180a are not built to the quality of a collins r - 390a or the hammarlund sp - 600, the hq 180 and hq 180a are excellent hf receivers who hold their own to both the r - 390a and sp - 600. when recapped, restored, and aligned, you will have a receiver that you will truly enjoy using - for years to come - that' s how well they were made and how good they perform. 73 jim (n6mv )
hammarlund comet pro type: general coverage modes: am / cw tubes / stages: 8 / 0 - rf, 2 - if audio output: 227 / 1w product detector: none filter: none (xtal - late model) new price / year: $ 90 - $ 150 / 1932 - 1935 (model variations 1 - 5) size: 9. 5
h x 20. 75
w x 13. 75
d approx. weight: xx lbs tube complement (variation 1): 224a mixer, 227 hfo, (2) 235 if, 224a detector, 227 bfo, 227 af out, 80 rect .
hammarlund hq - 100 type: general coverage modes: am / cw tubes / stages: 10 / 1 - rf, 2 - if audio output: 6aq5 / 1. 0w product detector: none filter: q - multiplier new price / year: $ 169 - $ 189 / 1956 - 1961 size: 9. 50
h x 16. 25
w x 9. 25
d approx. weight: 35 lbs tube complement: 6bz6 rf amp, 6be6 mixer, 6c4 hfo, (2) 6ba6 if, 6al5 det / anl, 12ax7 af1 / q - mult / bfo, 6aq5 af out, 0b2 vr, 5y3 rect .
hammarlund hq - 100a type: general coverage modes: am / cw / ssb tubes / stages: 10 / 1 - rf, 2 - if audio output: 6aq5 / 1. 0w product detector: none filter: q - multiplier new price / year: $ 189 - $ 199 / 1961 - 1964 size: 9. 50
h x 16. 25
w x 9. 25
d approx. weight: 35 lbs tube complement: 6bz6 rf amp, 6be6 mixer, 6c4 hfo, (2) 6ba6 if, 6bv8 det / anl / bfo, 12ax7 af1 / q - mult, 6aq5 af out, 0b2 vr, 5y3 rect .
hammarlund hq - 120x / hq - 120 type: general coverage modes: am / cw tubes / stages: 12 / 1 - rf, 3 - if audio output: 6v6 / 2. 0w product detector: none filter: xtal (hq - 129x) new price / year: $ 120 / 1938 - 1944 size: 11. 0
h x 20. 25
w x 13. 5
d approx. weight: 58 lbs tube complement: 6s7 rf, 6k8 conv, (2) 6s7 if, 6f6 if, 6h6 det / avc, 6h6 nl, 6j7 bfo, 6sf5 meter amp, 6v6 af out, vr - 150 vr, 5z4 rect .
hammarlund hq - 150 type: general coverage modes: am / ssb tubes / stages: 13 / 1 - rf, 3 - if audio output: 6v6 / 2. 0w product detector: none filter: xtal, q - multiplier new price / year: $ 290 - $ 295 / 1956 - 1958 size: 11. 5
h x 20. 25
w x 13. 5
d approx. weight: 60 lbs tube complement: 6ba6 rf, 6be6 mixer, 6c4 hfo, (3) 6ba6 if, 6al5 det / avc / nl, 12ax7 af1 / bfo, 6v6 af out, 0c3 vr, 5u4 rect, 12ax7 q - mult, 6bz6 calib .
hammarlund hq - 160 type: general coverage modes: am / cw / ssb tubes / stages: 13 / 1 - rf, 2 - if audio output: 6aq5 / 1. 0w product detector: yes new price / year: $ 379 / 1958 - 1960 filter: xtal, l / c size: 10. 5
h x 19. 0
w x 13. 0
d approx. weight: 38 lbs tube complement: 6ba6 rf, 6be6 mixer, 6c4 hfo, 6be6 conv, 6ba6 if1, 6ba6 if2, 6bj7 det / limiter / avc, 12au7 af1, 6u8 det / bfo, 6aq5 af out, 6bz6 calib, 0b2 vr, 5u4 rect .
the initial comet
pro
appears in hammarlund' s ad in april 1932 qst .
an eight - tube custom - built super - heterodyne which will do all that the professional operator demands between 14 and 200 meters .
the center control with the illuminated drum dial is now band - spread, while the two knobs with circular scales are
band - set
( main tuning). the type 47 audio - output power pentode has been eliminated in favor of a type 27 triode, and a phone jack has been added to the front panel. nyc radio row retailer leeds offered the comet pro for an introductory price of $ 88. 20 while mentioning a $ 150 list price .
hammarlund built a substantial quantity of the vhf fm “village radios” for the u. s. agency for international development (aid) for use in vietnam. several versions of these radios were produced under contract and were later made available as land - mobile units for the commercial domestic market. the sp - 600 variant the r - 1511 / gr was also produced during the vietnam era and used to detect signals in the hf spectrum. these “hybrid” receivers had eight printed circuit boards and only 9 tubes. they had a 200 khz bandpass filter front end and were mounted in banks of five giving them 1 mhz of audio coverage. this was recorded on video tape and the tapes were sent to the nsa at fort meade, maryland for interpretation .
hammarlund hq - 145 type: general coverage modes: am / cw / ssb tubes / stages: 11 / 1 - rf, 3 - if audio output: 6aq5 / 1. 0w product detector: none filter: xtal, l / c new price / year: $ 270 - $ 289 / 1959 - 1963 size: 10. 5
h x 19. 0
w x 13. 0
d approx. weight: 38 lbs tube complement: 6bz6 rf, 6be6 mixer1, 6be6 conv / 455 kc if amp, 6ba6 455 kc if amp, 6ba6 455 kc if amp, 6al5 det / nl, 12ax7 455 kc bfo / af amp, 6aq5 af out, 6c4 hfo, 0b2 vr, 5u4 rect .
hammarlund hq - 110 / hq - 110a type: ham bands only modes: am / cw / ssb tubes / stages: 12 / 1 - rf, 2 - if audio output: 6aq5 / 1. 0w product detector: none filter: q - multiplier new price / year: (hq - 110a) $ 249 / 1962 - 1964 size: 9. 50
h x 16. 25
w x 9. 25
d approx. weight: 32 lbs tube complement: 6bz6 rf amp, 6be6 mixer1, 6be6 mixer2 / xco, 6c4 hfo, 6ba6 if1, 6az8 if2 / bfo, 6bj7 det / anl / avc, 12ax7 af1 / q - mult, 6bz6 calib, 6aq5 af out, 0b2 vr, 5u4 rect .
hammarlund sp - 400 type: general coverage modes: am / cw tubes / stages: 18 / 2 - rf, 3 - if audio output: 6f6 / 2. 5w product detector: none filter: xtal new price / year: $ 345 - $ 385 / 1946 - 1948 size: 12. 75
h x 21. 5
w x 15. 25
d approx. weight: 68 lbs tube complement: 6k7 rf1, 6k7 rf2, 6l7 1st det / mixer, 6j7 hfo, 6k7 if1, 6sk7 if2, 6sk7 if3, 6h6 2nd det, 6n7 nl, 6sj7 bfo, 6sk7 avc amp, 6h6 avc rect, 6j5 af1, 6f6 af2, 6f6 af3, 5u4g hi - voltage rect, 5y3g c - bias rect .
ok, these guys are all messin' with you. it' s not very good, it looks good but don' t be fooled... it' s made by hammarlund, and all of their receivers follow the same theme. the rack panel, and big round dials? nice, but what do they really do? bah, mere eye candy. what i' d do is to pick it up, and send it over here. i' ll find a use for it as a door stop (i have a big heavy door to hold open in the summer) and just forget about it. i' ll cover the cost of taking it off your hands... just let me know... alright then? good, that' s settled. _ - _ - bear
hammarlund sp - 600 type: general coverage modes: am / cw tubes / stages: 20 / 2 - rf, 3 - if audio output: 6v6 / 2. 5w product detector: none filter: xtal new price / year: $ 980 - $ 1150 / 1951 - 1972 size: 12. 75
h x 21. 5
w x 17. 0
d approx. weight: 80 lbs tube complement: (2) 6ba6 rf, 6ac7 ffo, 6c4 vfo, (2) 6be6 mixer, 6ba6 gate, 6c4 ffo, (2) 6ba6 if, 6ba6 driver, 6ba6 buffer, 6c4 bfo, 6al5 det / avc, 6al5 lim / meter, 12au7 if3 / af, 6v6 af out, 6al5 rectifier single conv. under 7. 4 mhz, 0a2 vr, 5r4gy rect .
hammarlund hq - 180 type: general coverage modes: am / cw / ssb tubes / stages: 18 / 1 - rf, 4 - if audio output: 6aq5 / 1. 0w product detector: yes filter: xtal, l / c new price / year: $ 429 / 1959 - 1962 size: 10. 5
h x 19. 0
w x 13. 0
d approx. weight: 38 lbs tube complement: 6bz6 rf amp, 6be6 mixer1, 6be6 conv, 6ba6 455 kc if, 6be6 conv, 6ba6 60 kc if, 6ba6 60 kc if, 6bv8 60 kc if amp / avc / am det, 12au7 prod det, 6al5 anl, 6bz6 xtal calib, 6c4 hfo, 12au7 60 kc bfo / s - meter, 6ba6 455 kc gate, 6av6 af1 / avc, 6aq5 af out, 0a2 vr, 5u4 rect .
hammarlund hq - 170a type: ham bands only modes: am / cw / ssb tubes / stages: 16 / 1 - rf, 4 - if audio output: 6aq5 / 1. 0w product detector: yes filter: 60 kc l / c new price / year: $ 369 / 1962 - 1968 size: 10. 5
h x 19. 0
w x 13. 0
d approx. weight: 45 lbs tube complement: 6bz6 rf amp, 6be6 mixer1, 6be6 mixer2 / xco, 6ba6 455 kc if1, 6be6 mixer3 / var osc, 6ba6 60 kc if2, 6ba6 60 kc if3, 6bv8 60 kc if4 / avc / am det, 12au7 prod det, 6al5 anl, 6bz6 xtal calib, 6c4 hfo, 12au7 60 kc bfo / meter amp, 6av6 af1 / avc clamp, 6aq5 af out, 0a2 vr, si rect .
hammarlund hq - 180a type: general coverage modes: am / cw / ssb tubes / stages: 17 / 1 - rf, 4 - if audio output: 6aq5 / 1. 0w product detector: yes filter: xtal, l / c new price / year: $ 439 - $ 519 / 1963 - 1972 size: 10. 5
h x 19. 0
w x 13. 0
d approx. weight: 38 lbs tube complement: 6bz6 rf amp, 6be6 mixer1, 6be6 conv, 6ba6 455 kc if, 6be6 conv, 6ba6 60 kc if, 6ba6 60 kc if, 6bv8 60 kc if amp / avc / am det, 12au7 prod det, 6al5 anl, 6bz6 xtal calib, 6c4 hfo, 12au7 60 kc bfo / s - meter, 6ba6 455 kc gate, 6av6 af1 / avc, 6aq5 af out, 0a2 vr, si rect .
a standard sp - 600 with lf coils installed in the turret. the vlf version uses very different circuitry but with the mechanics and general construction being standard hammarlund sp - 600. the circuit of the sp - 600vlf uses a 705kc if and is a single conversion receiver. double pre - selection is employed on all bands (two trf amplifiers .) the
x
option crystal oscillator provides four channels (instead of six) and uses ft - 243 type crystals. five selectivity positions are provided (instead of six .) the 455kc if output is accomplished by mixing the 705kc if with a 1160kc crystal oscillator. the 455kc if was for driving data devices such as rtty converters. the chassis and the side panels are iridite finish and the side panels are similar to those used on the r - 390a receiver. since the vlf receivers are from the late - fifties, ceramic disk capacitors are used throughout the circuit .
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the hammarlund manufacturing company was founded by oscar hammarlund in new york city , new york , united states in 1910 . when the company was dissolved in the early 1970s , it was among the usa 's very oldest producers of radio equipment . 
the hammarlund manufacturing company was founded by oscar hammarlund in new york city, new york, united states in 1910. when the company was dissolved in the early 1970s, it was among the usa's very oldest producers of radio equipment.
the hammarlund manufacturing company was founded by oscar hammarlund in new york city, new york, united states in 1910. when the company was dissolved in the early 1970s, it was among the usa's very oldest producers of radio equipment.