Category Archives: Vintage Radio

The Sony ICF-SW800: A Most Unusual Sony Radio

Many thanks to SWLing Post contributor, Bill Hemphill (WD9EQD), who shares the following guest post:


A Most Unusual Sony Radio

By Bill Hemphill WD9EQD

Over the years, I have owned many of the various Sony shortwave radios.  From analog to digital, I would buy the latest and sell my current radio.  For the past few years, I have been using mainly Tecsun radios and didn’t own any Sony radios anymore.   This changed last year.  I got the urge to acquire a few of the Sony’s that I remember so fondly.  Over several months I bought off eBay four ICF-2010 (one of which works), two ICF-SW100 (one of which works), four ICF-SW1 (none of which works).  After spending way too much money just to acquire two working Sony radios, I started realizing that any Sony radio was probably going to need re-capping – a chore which I am not skilled at.  I could have saved money by just paying the high price for a radio that had already been completely re-capped and working.

During the many hours spent watching eBay, I would occasionally come across a Sony radio that I was not familiar with – the Sony ICF-SW800.  This is a very unusual radio in that it has only two bands – FM and SW.  And the SW band only covers 3.7 to 17.9 MHz  It also has these small credit card size pre-programmed memory cards.  I ended up buying a couple of the radios just to learn what was going on with the memory cards.

The radio is very plain and simple.  Dull black plastic, telescoping antenna, nice flip out tilt stand on the back, very small LCD display that shows time when off or in stand-by and band (FM or SW), frequency and card Preset memory number when card is inserted.  Following are photos of front of radio, without and with card inserted:

Removing the battery cover reveals a storage area for the cards when not in use:

The cards are slid into the slot on the right of the radio.  There is a plastic cover over the keyboard.  This cover is touch sensitive. The plastic has imbedded in it small dots which can detect which part of the screen is being touched.  Without a card inserted, you can select the band (SW EXEC or FM EXEC) and directly enter a frequency using the 0-9 keypad.  Or you can use the manual +/- tune keys.

I had originally thought that the memory cards must be storing the memories in circuitry within the cards.  When I got the first radio and looked at the cards I was really surprised to see that they were just cardboard cards – no circuity.  So how was the radio knowing which card was inserted and what was stored in the memory.

The radio comes with four double side cards. Three of the cards are for the memories while the fourth is a card used to set the clock.  Following are photos of the “L” series cards:

As you can see some cards are pre-programmed for Radio Stations and some are Free Memories for you to program your own station.  But since the memories are NOT stored on the cards, how does the radio know which card is inserted and which memory on the card is selected?

Each card has one or two white tabs on the left of the card.  There are three possible tab locations.  A review of the service manual and the wiring diagram shows that the locations of these tabs make up a binary code for 1 to 7.  (only 7 is needed since the clock card is single sided while the other three cards are double sided)  The clock card has all three white tabs and is thus seven (Tab 1 = 1, Tab 2 = 2 and tab 3 =4 for 1+2+4 = 7).  Then each of the other cards are 1 thru 6 depending on the tab locations.  The radio has infrared leds along with sensors.  By shining a LED light onto the card, the radio can sense which card is inserted and then reference the correct ten memory locations in the storage..

The memories are stored in an EEPROM chip soldered into the radio.  Depending on where the radio was purchased, a different set of memories would be pre-programmed into the chip in the radio.  An associated set of memory cards would be provided with the radio.  There were at least the following different set of memories manufactured with associated card sets as follows:

Area 5/AE7 Austria:

  • (Card Series “I”)
    • Card 1:  Austrian Radio 1/Austrian Radio 2
    • Card 2:  Omnibus 1/Omnibus 2
    • Card 3:  Free Memories 1/Free Memories 2

Area 3/AE7 Swiss:

  • Card 1:  Omnibus 1/Omnibus 2
  • Card 2:  Omnibus 3/Free Memories 1
  • Card 3:  Free Memories 2/Free Memories 3

Area AE6 Germany:

  • (Card Series “A”)
    • Card 1:  Deutsche Welle/Omnibus 1
    • Card 2:  Omnibus 2/Free Memories 1
    • Card 3:  Free Memories 2/Free Memories 3

Area 2/AE7: Scandinavia:

  • Card 1:  Danmarks Radio/Norsk Rikskringkasting
  • Card 2:  Sveriges Radio/ Yleis Radio
  • Card 3:  BBC/Free Memories

Area 6/AE7 Portugal:

Area 7/AE7 Europe:

  • (Card Series “N”)
    • Card 1:  BBC/VOA
    • Card 2:  Free Memories 1/Free Memories 2
    • Card 3:  Free Memories 3/Free Memories 4

Area 7/AE7 International Sales Division in Europe:

  • Card 1:  BBC/Omnibus FM
  • Card 2:  Free Memories
  • Card 3:  BBC/Omnibus SW

Area US United States:

  • (Card Series “L”)
    • Card 1:  Deutsche Welle/Radio Moscow
    • Card 2:  Voice of America 1/Voice of America 2
    • Card 3:  BBC/Free Memories

Area UK United Knigdom:

  • (Card Series “B”)
    • Card 1:  BBC (FM)/Omnibus (FM)
    • Card 2:  BBC World Service/Omnibus (SW)
    • Card 3:  Free Memories 1/Free Memories 2

It should be noted that even though a memory is preprogrammed (in the chip), you could re-program the memory using the “WRITE” feature on the card.  Most of the cards just show memory location 0-9 with no indication of the frequency.  Some cards do indicate the radio station but not the frequency.  For example, Card Series “A”, Deutsche Welle has DW 0 thru DW 9 on the card:

In the packing material that came with my US version, there is a small fold out piece of paper that lists the Memory Presets for each card along with the preset frequency, broadcast time and coverage area:

There is no way to know from the outside of the radio which memory chip was pre-programmed at the factory.  The model number does not differentiate between the regions.   If the back cover of the radio is removed, then there is a printed sticker on the circuit board denoting which region the radio is for.

For example, one of my radios has a sticker with “E” on it to denote that it for the Europe market:

At this point, Sony was trying to market to people who just wanted to listen to their favorite station, be it FM or SW.  Thus a simple to use. pre-programed radio.  Never mind the fact that radio stations may change frequencies, or even disappear entirely.   At least the ICF-SW800 allowed the user to re-program all the memories.

Sony also made two other radios that used the cards for memory.

The first was the ICR-SW700.  This was a two band receiver covering MW and SW.

The second radio was the ICF-M500 which was made for the Japanese market.  This radio was FM/AM two band radio:

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Can you ID this radio in Twelve O’Clock High–?

Many thanks to SWLing Post contributor, Dan Robinson, who writes:

At about the 15 minute mark in the classic movie, Twelve O’Clock High, about B-17 bomber groups in England during WWII, this scene shows a commander and his assistant listening to Lord Haw Haw from Nazi Germany on a small console radio. Anyone recognize it?

Brigadier General Frank Savage is played by Gregory Peck, his second-in-command by Hugh Marlowe, and Robert Patten and Dean Jagger also star.

If you can ID this radio model, please comment!

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Can you identify the radios in “In Harm’s Way”–?

Many thanks to SWLing Post contributor, Dan Robinson, who writes:

From the 1965 classic In Harm’s Way about the U.S. Navy after the Pearl Harbor attack. In this scene, Patricia Neal is listening to a Tokyo Rose broadcast, and speaking to John Wayne. Neal asks Wayne “why can’t they jam that broadcast?” Can anyone identify the beautiful rig she’s listening to?

Other noteworthy actors in this great movie: Carroll O’Connor, Burgess Meredith, Kirk Douglas, Slim Pickens, Paula Prentiss, Henry Fonda, Larry Hagman, George Kennedy, Christopher George.

Here are two other receivers shown in same movie:

If you can identify the radios above, please comment!

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Frans improves connections to his Hurricane Transmitter

Many thanks to SWLing Post contributor, Frans Goddijn, who writes:


Here’s a little follow up on what I did earlier with the little Hurricane transmitter.

Click here to view on YouTube.

Before I had an ‘indirect’ connection between antenna-OUT of the transmitter and the radio as I had two insulated wires , one from the transmitter, one from the radio, taped close to one another.

Now I first tried a direct coax cable from transmitter-OUT antenna to receiver-IN antenna. That worked well if I took care to not amplify the incoming signal too much.

Next I made a one-off three-way antenna switch into an all-three-way connector.

Then I sent sound/music (by Joe Frank) from the iPhone to the transmitter, to all three radios.

I first listened to each radio and in the end had all three playing the sound.

A pleasant way to listen to some of my favourites!

Best regards,

Frans

I love this, Frans! And what a great music selection to test the new setup! Thank you for sharing, OM.

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Dan spots radios in two Netflix series

Many thanks to SWLing Post contributor, Dan Robinson, who writes:

Two of the best foreign shows on Netflix are Wrong Side of the Tracks, produced in Spain, and The Beauty Queen of Jerusalem, from Israel.

Classic antique radios feature in both.

In Beauty Queen of Jerusalem, a wonderful old tube set appears in a scene set in a shop in old Jerusalem (the left of the shopkeeper).

Someone in Spain must be in love with old classic radios because we see a number of them in different scenes — primarily on a shelf in the shop of one of the main characters, along with a few portable radios. The large radio could be Grundig or any one of a number of other European sets — perhaps SWLing experts can provide the answer.

Click images to enlarge:

Can you ID some of these radios? Please comment!

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Radio Waves: RTI Test Broadcast Today, Messages to North Korea, Exploring Space Weather Book, Vintage Radios at Auction, and WMLK

Radio Waves:  Stories Making Waves in the World of Radio

Welcome to the SWLing Post’s Radio Waves, a collection of links to interesting stories making waves in the world of radio. Enjoy!

Many thanks to SWLing Post contributors Dennis Dura, Sten Odenwald, Paul Walker, and David Iurescia for the following tips:


RTI test broadcast July 1, 2023

Many thanks to David Iurescia who shares the following announcement (translated from French):

Dear listener,

The French service of Radio Taiwan International is pleased to inform you that during the month of August 2023, we will be broadcasting directly from the Tamsui transmission center in northern Taiwan to Europe and South Africa. north.

In order to better prepare for this radio activity in French, a test broadcast will be carried out on Saturday July 1 on short waves, at the following times and frequencies:

    • Frequency 11995 kHz (325°), 5:00 p.m.-5:10 p.m. then 5:30-5:40 p.m., universal time
    • Frequency 9545 kHz (315°), 6:00 p.m.-6:10 p.m., universal time
    • Frequency 7240 kHz (315°), 6:20 p.m.-6:30 p.m., universal time
    • Frequency 7250 kHz (315°), 6:40 p.m.-6:50 p.m., universal time

Your listening reports on these 10-minute segment tests will help us identify the two optimal frequencies for August’s “Live from Tamsui” broadcast under the best possible listening conditions.

Thank you for your valued input!

A special QSL card is produced for all the listening reports that you will send us by post, email to the French service or via the stations’s online form, both for the test broadcast and during the August broadcast.

Thank you for listening and for your loyalty.

Cordially,

French Service, RTI

[email protected]

Abductees’ relatives record radio messages for broadcast to North Korea (NHK)

Family members of Japanese nationals abducted by North Korea have recorded encouraging messages for a radio broadcast aimed at the country.

The messages were recorded in Tokyo for Free North Korea Radio, a shortwave broadcaster. Its daily radio program is run by a group of people who defected from the North to South Korea.

The abductees’ relatives called on their loved ones never to give up until they are rescued.

The leader of the relatives’ group, Yokota Takuya, is a younger brother of Yokota Megumi, who was abducted in 1977 at the age of 13. He asked his sister how she is doing. He also said he is sorry that she has had to spend a long time in North Korea without freedom.

He added that the relatives will never give up until they achieve the return of all the abductees.

His twin brother, Yokota Tetsuya, told his sister about their parents. He said that their father, who died three years ago, thought about rescuing his daughter every day.

He added that their 87-year-old mother often falls over, but is doing well. He vowed to get back his sister and asked her to stay healthy until she can be reunited with her mother.

Japanese Prime Minister Kishida Fumio said last month that he wants to start high-level talks under his direct control to hold a summit with North Korea at an early date.

Yokota Takuya said after the recording that he wants the Japanese government to continue its steady diplomatic efforts until all the abductees are returned.

He expressed hope that a Japan-North Korea summit can be held and that North Korean leader Kim Jong Un will decide to hand over all the abductees. [Read the full story and watch the video here…]

New Book: Exploring Space Weather with DIY Magnetometers (Amazon)

Many thanks to SWLing Post contributor, Sten Odenwald, who writes:

Hi Thomas!

Thanks so much for your contribution to the History of Space Weather book I published several years ago!

I have just published a new book I think you might be interested in. It’s called Exploring Space Weather with DIY Magnetometers, and it’s now available at amazon.com (see below). It provides step-by-step designs for building six sensitive instruments for under $60.00 that can measure real-time changes in Earth’s magnetic field.

If you are interested in such a building project, or you know of a family member, teacher, or even a student looking for a science fair project, this book will show you how to build these instruments. I also provide examples of storm events that were actually detected by each design so you can see what typical data looks like. For additional examples and updates, visit my blog page at http://sten.astronomycafe.net/diy-magnetometers/

Thanks again for your help!
Sten Odenwald
Astronomer

Click here to check out this book on Amazon.com (SWLing Post affiliate link).

Schulman Auction Radios

Many thanks to SWLing Post contributor, Dennis Dura, who notes that a number of vintage and late model radios are up for auction at Schulman’s:

WMLK on the air (Paul Walker)

Many thanks to SWLing Post contributor, Paul Walker, who shares the following tip:

It appears they are now operating at US night times now. For the longest time, as you may be aware, they were only on 9275 kHz during the day.

Sometime around mid last week, they were being reported on 15150 kHz as well.

And I finally logged them too.. nice signal on 15150 kHz here just after 0400!!


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