Category Archives: News

Guest Post: Radios I Have Known #2

Many thanks to SWLing Post contributor, Neil Goldstein, who shares the following guest post which originally appeared on his blog, Fofio:


Radios I Have Known #2 The old, the new, and the Select-A-Tenna

by Neil Goldstein

L-R: Select-A-Tenna, Tivdio V-115, Sony ICF-5500W

After promising this series a year and a half ago, I finally have started digging through the collection, and will start posting about once a week.  The radios, and accessories may not have anything in common (as seen in this post), but were all acquired because they were in some way interesting, or sentimental to me.  Here’s the first three:

Select-A-Tenna
One of the original air-core tunable AM antennas.  You just put this near the radio and peak it for reception.  I was watching for one of these in good shape, and not overpriced, and they have been in and out of production over the years.  This one is from a later production run as can be seen by the extended AM range (1700).  Jay Allen reviewed the S.A.T by comparing the the TERK Air Core antenna not long ago here:  https://radiojayallen.com/select-a-tenna-vs-terk-am-advantage/  The TERK reviewed well, and looks more modern, but I wanted the classic cheesy art-deco looking S.A.T.

Tivdio V-115
I won’t post a long, boring review here.  Many have already reviewed this radio.  All I can say is that if you like small, decent-sounding transistor radios, you will not be disappointed.  If you are expecting top-shelf performance, and perfect ergonomics, then you you may not be happy, but for around $19 you really should be happy with this little gem.  A great little radio at a great price and the most impressive thing here is the sound.  The radio has a small passive radiator like the Meloson M8, and M7, and really surprises me.  It can also be used as an amplified speaker, and has a micro SD slot for using it as a standalone MP3 player.  Grab one!

Sony ICF-5500W
Most transistor radio collectors know this radio.  It’s a classic for sure, but I have to give a little background on why I wanted one.  When I was about 12 years old, I had a few analog SW portables, but nothing with direct frequency readout.  Panasonic had introduced it’s series of direct-readout radios, the RF-2200, 2800, and 4800, and Sony was competing with the ICF-5900W.  Dad acknowledged the quality and technology of these radios, and told me that if I saved most of the money by working for him, he may help me get one.  The 2800, and 4800 were way out of reach, but one Sunday in the local paper, a department store in Kingston (Britt’s, which was Newberry’s answer to Macy’s) had the 2200 advertised for $138.88.  I had been flip-flopping between the Sony and the Panasonic for weeks, but that was the clincher.

The radio is still in use.  My sister in law has it.  I had given it to my late brother Paul at some point and she still uses it as her main radio.

Why this Sony though?  I still want a 5900W.  When I saw this one come up at an auction, I recognized the shape it was in.  The ICF-5500W was the companion radio to the 5900W.  AM/FM and VHF Hi (with a basic, but functional squelch control).  The 5500 and 5900 are a monument to Sony design at the time.  The pop-up antenna (which still works flawlessly), The separate Bass, Treble, and Loudness controls, The overall quality of sound and function, all of this is an example of what Sony was producing at the time.  I think their modern small electronics are a shadow of what they were capable of years ago.  This thing still sounds great and performs well next to my modern DSP radios.  I still would love to get a pristine 5900W but they usually fetch premium dollars.  Maybe someday.

Bravo Sony, but where did you go?

More to come!!


Thanks for sharing, Neil!  I, too, have the Tivdio V-115 and the Sony ICF-5900W.

The ‘5900W is a gem of a solid state receiver. It has brilliant AM broadcast band reception and rich audio. I need to open my ‘5900W and clean all of the contacts since some of the sliders are scratchy. It’ll make for a nice rainy day project!

We look forward to your next installment! Post Readers: be sure to check out Neil’s blog, Fofio!

Radio spotted in “The Day the Earth Caught Fire”

Many thanks to SWLing Post contributor, Mark Hirst, who has discovered yet another radio in film:

Spotted this in the 1961 sci-fi movie, ‘The Day the Earth Caught Fire‘.

I’m guessing it’s an old military set.

I believe it is indeed, Mark!  Perhaps an intrepid SWLing Post reader can sort out the model number?  Please comment!

I’ll add this post to our growing archive of radios in film.

78 Megahertz: Australian astronomers detect signal from the dawn of the universe

(Image: NASA – Hubble Space Telescope)

(Source: ABC Science via William Lee)

Astronomers detect signal from the dawn of the universe, using simple antenna in WA outback

They have picked up a radio signature produced just 180 million years after the Big Bang using a simple antenna in the West Australian outback.

The ground breaking discovery, reported today in the journal Nature, sheds light on a period of time known as the “cosmic dawn”, when radiation from the first stars started to alter the primordial gas soup surrounding them.

[…]The signal they’ve been looking for is a miniscule fraction — between 0.1 and 0.01 per cent — of the radio noise from the sky.

“It’s like trying to hear a whisper from the other side of a roaring football stadium,” Professor Bowman said.

The signal is also within the lower range of FM radio, so finding a place on Earth that is free of human radio interference was essential.

That’s why Professor Bowman and colleagues decided to base their experiment at CSIRO’s Murchison Radio-astronomy Observatory, 300 kilometres north-east of Geraldton.

“Going to Western Australia and working at the Murchison Radio-astronomy Observatory was an absolutely critical first step for us,” he said.

There they built a small table-sized radio spectrometer with a radio receiver attached to two metal panels that act as an antenna. Akin to a set-up from the 60s or 70s, the EDGES instrument is much simpler in design than bigger array telescopes around the world.[…]

Click here to read the full article at ABC Science.

UA searching for family of console radio struck by meteorite in 1954

Meteor that struck Ann Elizabeth Fowler Hodges. (Photo source: University of Alabama)

Many thanks to SWLing Post contributor, Mike Hansgen, who shares the following story from Forsythe County News (which could win Headline of the Year) and notes, “No One Is Safe! Build a bunker!”:

University of Alabama searching for family of owner of radio struck by meteorite

If anyone in Forsyth County knows the family of Eugene H. Hodges, officials with the University of Alabama are trying to contact them to talk about a radio struck by a meteorite.

Mary Beth Prondzinski, collections manager with the Alabama Museum of Natural History on the university’s campus, said the museum is searching for family members of the late Eugene Hodges, the owner of a radio of struck by a meteorite in the 1950s that is on display.

“The radio is part of an event that occurred here in Alabama back in 1954,” she said. “It was actually called the Sylacauga Meteorite Event. It fell in Sylacauga, Alabama, and it went through somebody’s home and struck the radio that we currently have on exhibit, which hit the woman who lived in the house.”

The woman struck by the meteorite was Ann Elizabeth Fowler Hodges, then-wife of Eugene Hodges.[…]

Continue reading at the Forsythe County News.

Vernal equinox ‘cracks’ in Earth’s magnetic field

Credit: NOAA SWPC

(Source: Southgate ARC)

Equinox ‘cracks’ forming in Earth’s magnetic field

The vernal equinox is less than 10 days away. That means one thing: Cracks are opening in Earth’s magnetic field.

The seasonal phenomenon is known as the “Russell-McPherron effect,” named after the researchers who first explained it more than 40 years ago.

These “equinox cracks” are causing geomagnetic activity and bright auroras around the Arctic Circle even without strong solar activity.

Visit today’s edition of Spaceweather.com for the full story.

The Sony ICF-M780SL: Peter catches some serious MW DX on Gran Canaria

Many thanks to SWLing Post contributor, Peter Wilson, for sharing the following guest post and DXpedition report:


Sony ICF-M780SL MWDX on Gran Canaria

by Peter Wilson

Las Palmas, Gran Canaria, Spain

I have spent the last two months in Las Palmas, Gran Canaria adjacent to the Atlantic Ocean.
I travelled light and didn’t bring my radio/SDR collection with me.

A portable I saw in a local department store caught ny eye, and I ended up buying one from a local electronics retailer which had it on special at €55. It is a Sony ICF-M780SL which as turned out, is something rather special. It is a four band (LW, MW, SW,FM) DSP receiver, with an AM IF (LW, MW,SW) of 45 kHz and an FM IF of 128 kHz.

There’s too much hash in my apartment block to use it at home, but as I am a couple of streets away from the Ocean I intended to use it there.

Problem is there almost as much RF hash at the oceanside as at home. Also the Atlantic breakers crash loudly on the shore, and the wind can howl quite loudly. I did have some limited success and have included a couple of clips.

I discovered a better DX location at a small Plaza a short distance inland from the Ocean. There is an early morning peak for MW TA leading up to about 07:30 UTC (= local time)

The radio is used barefoot in each clip. There is some camera hash.

Here are the highlights:

USA Transatlantic

1500 WFED booming with ID 5736 km

Click here to view on YouTube.

790 WAXY with ESPN Radio ID 6369 km

Click here to view on YouTube.

1540 KXEL 6935 km

Click here to view on YouTube.

1530 WCKY 6373 km

Click here to view on YouTube.

770 WABC 5459 km

Click here to view on YouTube.

1520 WWKB

ESPN Radio with sports talk. 5841 km

Click here to view on YouTube.

Ocean front around dusk

1350 TWR Armenia 5377 km

Click here to view on YouTube.

1521 Duba Saudi Arabia 5004 km

Click here to view on YouTube.

1458 Lyca Radio, Brookmans Park UK 2914 km

Click here to view on YouTube.

The Sony ICF-M780SL is a great MW/LW/FM performer. SW propagation has been mediocre and suffers from the RF hash QRN, so difficult to test.


Amazing, Peter! It’s hard for me to believe the reception you had of WFED (Federal News Radio). I listen to that station every time I go through the DC/Baltimore area and I think your reception is just as good. A TA crossing of almost 5,000 km with armchair copy! Quite an accomplishment!

Thank you for sharing your Gran Canaria DX with us. I’m pretty impressed with the Sony ICF-M780SL as well.

Post Readers: make sure you check out Peter’s YouTube channel by clicking here.

Click here to search Amazon.co.uk and click here to search eBay for the Sony ICF-M780SL.