Tag Archives: Vintage Radio

Video: The Erres KY-418 radio set WWII era assembly line

Many thanks to SWLing Post contributor, Adid, who writes:

The Erres KY-418 Radio set assembly line. You must watch this:

Click here to view on YouTube.

My heart goes to the poor guys who work under all that machinery noise with no ear plugs or with no mask when spray paint.

Everything is hand made in-house even the loudspeakers, coils or the rotary switches….

Just remember that WWII is on while it was made and I don’t think the KY-418 was a cheap radio…

Regards, Adi

Thank you for sharing this, Adid. You’re right: there were a few generations of folks who lost much of their hearing early on due to the constant noise on factory floors. 

That said, I’ve been enjoying these videos of early radio production lines. Thank you!

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Fun with “The Radio Boys”

By Jock Elliott, KB2GOM

Back in April of this year (2022), I accidentally discovered The Radio Boys series of books, many of which are available for free if you have an Amazon Kindle.

These books, I believe, are intended for young adults, and, in my mind, they very much resemble The Hardy Boys series of books: a group of high school friends have adventures and discover the wonders of radio together. Think “The Hardy Boys go all-in for radio,” and you have the right idea.

If you are looking for sophisticated plots, deep character development, and a lyrical turn of phrase, you will be disappointed. But if you a looking for a light-hearted adventure with deep enthusiasm for radio, I think you will be pleased.

But what makes these books really cool is that they were written and copyrighted 100 years ago, in the early 1920s. Yes, some of the language and attitudes are somewhat antiquated, but what is fascinating is the window they offer on radio a century ago.

My knowledge of radio history is very limited, but it is my understanding that radio was just beginning to be popular in American culture in the early 1920s, The Radio Boys books reflect this. The first book, The Radio Boys’ First Wireless Or Winning the Ferberton Prize, gives fairly detailed instructions for making your own radio receiver with materials you could get (in the early 1920s) from the local hardware store.

At various points in the books, The Radio Boys extol the virtues of radio: people could hear concerts in the comfort of their own homes or listen to baseball games; if there were radios in cars, travelers could keep track of weather reports; it was a novelty when a minister broadcast the church service; college professors could broadcast their lectures, and so forth. I find the books offer a charming perspective on what we take for granted today.

And, if you have an Amazon Kindle, many of The Radio Boys books are available at no cost.

Click here to check out some of The Radio Boys titles on Amazon.com.

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Radio Nostalgia: Bob’s first radio

Many thanks to SWLing Post contributor, Bob Colegrove, who shares the following guest post:


My Very First Radio

By Bob Colegrove

Sears and Roebuck Co., Silvertone, Catalog No. 8003, Model No. 132.818-1

I don’t remember much from 1949.  I was seven years old and still in the first grade.  I do remember being gifted a radio by my mom and dad on my birthday.  It was a Sears and Roebuck Co., Silvertone, Catalog No. 8003, Model No. 132.818-1.  I don’t really remember asking for it.  I’m sure mom and dad did not have a clue as to how consumed I would become with radio over my lifetime.  In truth, this was not the radio that got me totally absorbed, rather that function would be filled in 1958 by the Howard Radio Co. Model 308 combination MW/SW radio-phonograph console which had been relegated to the basement in favor of the TV set.

In 1949 television was on the cusp of success, and AM radio was still the one-way Internet of its time.  I recall my mother listening to countless soap operas during the afternoon.  The Howard was still in the living room and we listened to all the popular programs at night.  Anyway, the Silvertone was mine.  It took up residence in my room and I could independently explore the wonder of five local stations broadcasting in Indianapolis at that time.  There were no parental guidance settings on the Silvertone, nor was there any need.

The Silvertone was not a world-class radio with all the sensitivity, bells and whistles I would later desire.  Below WXLW, 950 kc it was deaf.  It was, in fact, one tube short of an “All American Five.”  However, one of its four tubes was dual function, if you counted the detector.  It was what was called an “ac-dc” radio.  This meant it could be powered by either 110 Vac or Vdc.  Granted, there were a couple communities in the US which were still serviced by dc power at this late date, but that fact certainly did not warrant advertising.  The whole thing always seemed to me no more than a marketing ploy on the part of manufacturers to cover for the lack of an expensive isolation transformer in the circuit.  Given the fact that electrical standards of the time did not provide for polarized outlets and power cords, these things could be quite hot, and it’s amazing so many tinkers, myself included, are around to talk about it.

One Tube Short of an “All American Five”  

The dial was very crude, and the tiny tuning knob swept all 107 available channels in a 180-degree twist of the variable condenser.  My mom, always handy with a paint brush, took to marking favorite stations  with a dab of nail polish.  1430 kc was WIRE and 1070 kc was WIBC.  Perhaps she got the idea from Bill Halligan who used little red dots on the controls to indicate the setting that would likely produce some noise.

The printed media were sizeable and substantive in the 1940s.  The Indianapolis Star’s morning edition for Friday, April 13, 1945 was particularly mournful as the U.S. woke up to the news that the president had died the day before.  I was later given to understand that many stations broke from the normal schedule for a few days to play somber music.  Notwithstanding, the first section still bore the quintessential hourly radio program schedule from 6 am to midnight for each of the four local stations.  We always kept clippings of station logs for each day of the week.

My interest in baseball grew over the next couple years, and the Silvertone played an important role in my keeping up with the local AAA team.  The static on a summer night was atrocious.  Further, in those days, the broadcasters were not compelled to fill the air with chatter between pitches.  There were no recitations of mindless statistics and no color commentators to describe the nuances of sliders and curve balls.  Consequently, between pitches there were often long pauses of nothing but dead air.  If you happened to tune in during a pause you had little idea where WISH, 1310 kc was on a hopelessly crude dial.

Most minor league broadcasters did not travel with the team.  When the team went on the road, they used an old Model 15 clickety-clack Teletype machine in the studio.  A local guy at the distant ballpark would observe a pitch or play, and quickly type a cryptic message on his Teletype.  On the radio you would first hear the receiving Teletype spring to life in the studio as the message came in.  The announcer would quickly interpret it, and then embellish the play with some excitement as best he could.

Teletype Model 15
Copyright Museums Victoria (Licensed as Attribution 4.0 International
https://creativecommons.org/licenses/by/4.0/)

During those times, it was not too uncommon for the Teletype to suddenly go down during the game.  What to do?  An announcer was suddenly left to his own creativity to fill in airtime.  Possible solutions were to describe the lengthy process of extricating a stray animal from the field, or a sudden cloudburst and consequential rain delay.  An intrepid announcer went on as nothing happened, making up the play-by-play over the interval.  Invariably, when the Teletype came back up, he found himself not quite in sync with the game and possibly a few runs behind.  At that point the challenge was to patch in the necessary play and go on to complete the game to the satisfaction of an otherwise unsuspecting audience.

Well, after 73 years, I’ve seen my share of radios.  In the meantime, the Internet has made it possible to DX the entire world at any time on a fifty-dollar Kindle – excellent fidelity, no interference, no noise, no fading.  But, after all these years, I still cherish those static-filled ballgames and teletype machines heard on the Silvertone a long time ago.

Quietly Waiting for the Next Pitch

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Mark seeks a vintage radio repair technician in the DC metro area

Many thanks to SWLing Post contributor, Mark Irish, who writes:

Good afternoon Mr. Witherspoon,

Just wanted to follow up on a contact for fixing several shortwave radios from the primarily the 70s and 80s, preferably someone located in the DC Metropolitan area, Virginia or North Carolina. These would include the Zenith R-7000-2 and General Electric World Monitor P4990A. Is this something that you could post on your blog? If possible, please let me know either way.

Thank you,

Mark Irish

Great question, Mark! It’s difficult to find radio repair technicians these days. 

I have a couple of suggestions, but perhaps the SWLing Post community can comment with even more options!

You might check with Vlado at HamRadio.repair. He has worked on some vintage solid state radios in the past–he’s located near Asheville, North Carolina.

Also, you might reach out to the National Capital Radio & TV Museum in Bowie, MD. They offer classes in radio repair and I imagine they would be the best source to find a technician in the DC Metro area.

Post readers: Please comment if you know of other resources for Mark!

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WU2D and “Dream” SW Receivers of the 1960s and 70s

Many thanks to SWLing Post contributor, Bill Meara, who shares this most recent post from his excellent SolderSmoke Podcast blog:

Mike WU2D Looks at the “Dream” SW Receivers of the 1960s and 70s (Video)

Wow, I really liked Mike’s walk down memory lane. I saw several of my own dream receivers:

S-38E. Indeed, this little monster did add some danger to your life. AKA “The Widow Maker,” I gave one to my cousin’s husband so he could listen to what the commies on Radio Moscow were saying. He later told me that the receiver had given him a shock. I now have TWO S-38Es in my shack (two more than I really need). I have installed isolation transformers in both of them, so they have lost the one element (danger!) that made them attractive.

HA-600A. I got this one for Christmas in 1972. The A model is MUCH better than the plain vanilla HA-600. I recently got another HA-600A and found serious deficiencies in the Product Detector. Has anyone else noticed these problems? BACKGROUND INFO AND A PLEA FOR MORE INFO HERE: https://soldersmoke.blogspot.com/search?q=HA-600A+Product+Detector

HQ-100. Got one in the Dominican Republic. Fixed it up, repairing damages caused by radio life in the tropics. Disabled the goofy audio amplifier circuitry. I now wonder if this receiver might benefit from the insertion of a 455 kc ceramic filter.

NC190. Wow “Cosmic Blue” Perhaps this was an early influence that led to “Juliano Blue?”

HQ-180. “18 tubes and almost as many knobs!” FB!

HRO-500. Love the dial.

Transoceanic. Never had one, but built a BFO for the Transoceanic that W8NSA took with him to SE Asia during the war.

R-390A. I don’t have a crane for the workbench.

Thanks Mike — that was a lot of fun.

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Radio Waves: RTUK Demands License, Finding MH370 via Signal Disturbances, Massive Collection of Antique Radios, and Free Tech License Class

Radio Waves:  Stories Making Waves in the World of Radio

Because I keep my ear to the waves, as well as receive many tips from others who do the same, I find myself privy to radio-related stories that might interest SWLing Post readers.  To that end: Welcome to the SWLing Post’s Radio Waves, a collection of links to interesting stories making waves in the world of radio. Enjoy!


Turkey demands Deutsche Welle, VOA and Euronews apply for a licence (Broadband TV News)

Turkish media regulator RTÜK has given three international broadcasters 72 hours to apply for a licence or have their online content blocked.

Voice of America (VOA), Deutsche Welle (DW) and Euronews are including video on their websites and are seen as among the few independent news sources still available in Turkey.

RTÜK published a statement on its website Monday, signalling the start of the 72 hour period.

If the procedure for applying for a licence is underway, a broadcaster can continue on-air for another three months, providing the anticipated licence fee is paid to the regulator in advance. [Continue reading…]

Finding MH370: New breakthrough could finally solve missing flight mystery (60 Minutes Australia via YouTube)

Is the biggest aviation mystery of all time, the disappearance of Malaysia Airlines flight MH370, about to be solved? Yes, if you believe the man you’re about to meet. Richard Godfrey is no crackpot; he’s a respected British aerospace engineer and physicist who says he’s found the doomed airliner. If he’s right, he’ll provide desperately needed answers for the families of the 239 passengers and crew who were aboard the Boeing triple-seven when it vanished eight years ago. But knowing where it is isn’t the end of the story – Richard also has to convince authorities to resume the search that’s already cost hundreds of millions of dollars.

Click here to view on YouTube.

Retired electrical engineer, 85, has £15,000 collection of 200 antique radios that he has been building up for 50 years – including one of the oldest sets in the UK (The Daily Mail)

A grandfather-of-five has revealed his impressive antique radio and test instrument collection worth up to £15,000.

Richard Allan, a retired electrical engineer, has spent the last fifty years collecting antique transistor, valve and crystal sets and has now shown off his impressive collection of more than 200 pieces.

The 85-year-old from Norfolk, first fell in love with radios because of his father, Alexander William, who built his own transmitter and spoke to people all over the world through the airwaves.

In fact, Richard’s first – and favourite radio within his collection – is the one his father, a HAM, or amateur radio lover, played non-stop during World War II after purchasing in 1938.

Another notable piece within his collection is an E52b German military radio, captured in a vehicle at Foxhill, Bath, which was where his father worked in the Admiralty. [Continue reading…]

Free online amateur radio Technician license class (Southgate ARC)

The Montgomery Amateur Radio Club in Maryland is offering a free online Zoom amateur radio Technician license class on seven Saturdays from March 19, 2022 through April 30, 2022 from 1:00 PM to 4:00 PM with an outdoor free test session on Sunday, May 1, 2022 8:30 AM to 11:00 AM.

More information about this Zoom class is at
https://www.marcclub.org/mweb/education/classes/technician.html

This is a great opportunity for you to get your amateur radio license. To learn more about amateur radio, also known as ham radio, go to http://www.arrl.org/what-is-ham-radio

To register for this free class, send an email to [email protected] .

Also, please distribute this announcement to anyone who expresses an interest in getting their ham license and to any newly licensed hams.

Thank you,

David Bern, W2LNX
MARC education committee


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