Tag Archives: Sony

Peter recommends the Sony SRF-S84 and SRF-18 ultralights

The Sony SRF-18

In reference to our post about the Sony SRF-39FP and SRF-59, SWLing Post reader, Peter, writes:

The Sony SRF-S84

As usual a very interesting post.

I sold most of my collection of receivers some years ago but I’m still interested in AM DXing and especially ultralight DXing (thats why I have three SRF59).

May I draw your attention to other receivers as well?

The famous CXA1129N chip has been built into the SRF-S84 and into the SRF-18 as well. I use the SRF-S84 during sports. As the ferrite rod is even smaller than in the SRF-59 AM reception is a little bit less sensible but FM shines with mega sound.

The SRF-18 is my favorite travel radio!! It runs endlessly on two AA-cells, has built in stereo speakers, audio-in and audio-out, a rather large dial which is easy to use and due to a larger ferrite rod it is very very sensitive on medium wave.

SRF-S84 on Amazon

SRF-18 on Amazon

Best regards from Germany

Peter Oden

Thank you, Peter! Perhaps the SRF-18 can take the place of the SRF-59 as an affordable MW ultralight that is still in production. The Amazon price for the SRF-18 is $32 US–quite affordable. While I don’t need another ultralight, that price makes it very tempting.

The SRF-S84 reminds me of a super compact radio I used to sneak into my fifth grade class. I would listen to the radio during class by concealing the receiver in an interior jacket pocket and snaking the earphone cord through my sleeve. I would then rest my head on my left hand where the earphone was conveniently located. Somehow I never managed to get caught.

While I’m sure my education suffered a little that year, it still makes for good memories!

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Robert’s modified version of the Sony SRF-39FP

Pocket DX: Finding the Sony SRF-59 and SRF-39FP

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I have two of the Sony SRF series pocket AM/FM radios: the grey SRF-59 and the clear SRF-39FP.

The venerable SRF-59 has long been one of the least expensive, quality analog AM/FM receivers on the market. I originally purchased one new for $14.95 US including shipping. Here’s a short review I made of the ’59 several years ago.

The Sony SRF-39FP (click to enlarge)

The SRF-39FP–the model with the clear case–was specifically designed by Sony radio for the prison market.

A couple years ago, someone on eBay had a lot of Sony SRF-39FP units on sale–I jumped at the opportunity to buy one new-in-box for $20 US. The entire lot of SRF-39FPs sold in a matter of hours. Indeed, the ’39FPs were so popular, by the time I prepared a post for the SWLing Post, the seller had already sold out. (I’m kicking myself for not buying at least one extra–!)

While most ultralight radio enthusiasts would give the SRF-39FP a performance edge over the SRF-59, they’re essentially the same radio–especially if you tweak the SRF-59 like my buddy Dave Richards did.

The Sony SRF-59 (click to enlarge)

Several weeks ago, while Steve researched the reason he was hearing shortwave broadcasters on his SRF-59, he also discovered that the SRF-59 had been discontinued and selling in many places for three or four times the original price.

He found one vendor still selling the SRF-59 for $14.99 plus shipping. I placed an order with this vendor over a month ago, but still haven’t received the product because the vendor hasn’t taken delivery of the final batch of units from Sony. I’m in contact with this vendor and when/if the units are received in stock next week, I’ll post an update here on the SWLing Post (if interested, follow this tag).

If you’re in the market for a Sony SRF-59, here are a few places you may find one new or used:

(If you know of other good suppliers, please comment!)

The SRF-39FP has a clear housing which is meant to prevent prison inmates from using it to smuggle contraband.

If you would prefer the Sony SRF-39FP, the only source I know of is eBay. When one becomes available, it typically sells for $45-50 US.

Click here to search eBay.

To be clear: while the SRF-59 is an exceptional ultralight receiver, $45-50 US would certainly place it in a price class with other excellent ultralights.

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Mini DXpedition: Oxford Shortwave Log and the Sony ICF-SW55

Hearing shortwave on the Sony SRF-59 AM/FM walkman

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The Sony SRF-59

SWLing Post reader, Steve, writes:

I check in on your blog frequently. I’ve been a casual SW and AM dxer since my childhood. I’m a mechanical engineer, and have some basic electronics knowledge, but I’m no RF expert, and half forgot most of what I used to know.

On 9-13-15, around 11am eastern time, I was playing with a Sony SRF-59 down low on the AM band. The lowest station I can hear at my location near Valley Forge PA is a Spanish language station on 540–WLIE, on Long Island I think. My dial is badly calibrated but I know I was below that station on 540, maybe even below 530 or 520, and heard some noise. It took some really careful back and forth tuning, but I could hear a voice. I put the radio against my AN200 passive loop and heard the clear unmistakable voice of “Brother Scare”, (Overcomer Ministry). I scanned the shortwave and found a simulcast on 9840, WHRI Cypress Creek SC. The info I have says it’s a 250 kW broadcast.

Grundig AN200 Loop Antenna

I scratched my head and thought there must be a pirate rebroadcasting it on the bottom of the AM band, but I couldn’t hear it on my CC 2E, or my Grundig G3 which tunes continuously from LW into MW. It is really touchy to tune on the SRF-59, but with work, I could hear him barefoot, and very cleanly with the loop. I checked in several times the next few hours and it was there until WHRI went off the air at 3pm I think. Unfortunately, I never got a station ID.

On the morning of Monday Sept 14, at 9pm local time, with the same radio and loop, I got a station ID for China Radio International, and then found the same broadcast on 9570 from Quivican Cuba–also a 250 kW signal. I could not hear it clearly barefoot, as with WHRI, (it is quite a bit more distant) but with the loop is was incredibly clear. Also it doesn’t seem to matter where the tuning dial on the loop is, or how it’s oriented (I was aimed east/west). The radio and loop both function normally higher up the AM band (you need to tune the loop, and the reception is amazing with it).

I know I was below 540, because I passed local stations on the way down–610(WIP), and 560 (WFIL)–and could hear Spanish voice just below that, which had to be 540. The shortwave was just below that. The only thing i get below that on any other AM radio is Cuba and Canada on 530, both of which I can obviously only get at night time. I don’t know how the tuning circuits could jump 9mHz so suddenly.

Call me mystified. I thought I could find something about this on the net; I can’t be the only one with this experience; but no. Have you ever heard of this?

Steve followed up later noting that he is actually able to tune in the whole 31 meter band, as long as a signal is strong enough to overload the SRF-59.

I’ve done a lot of MW DXing with the SRF-59 and had never noticed harmonics, but I’m not surprised they can be heard either. I might try to replicate what Steve did using my AN200 loop coupled to the SRF-59.

Has anyone else as heard 31 meter band signals on their SRF-59?

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A repair story: Vlado’s fix for the classic Sony ICF-SW100

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In June, I made a small leap of faith and purchased a (dead) Sony ICF-SW100 from Universal Radio (see the listing on right).

ICF-SW100-Used-NonWorking You see, for many years, I’ve dreamed about owning this wee little receiver, now a classic among tiny radios, but used ones are typically too expensive for my modest budget.

This time, seeing the ad at Universal, I spoke with Universal Radio directly to obtain more details about their defunct unit; while they simply didn’t know what was wrong with the Sony, they were able to very accurately describe its cosmetic and functional condition…I took a deep breath, and decided to take a chance on it anyhow.

In full disclosure, I have a secret weapon in my camp: my talented friend, Vlado (N3CZ), who is not only the most adept electronics engineer/technician I’ve ever known, but one who truly welcomes a challenge. The thought had occurred to me as I admired the wounded Sony, Wonder if Vlad would like to take this on–?

The answer, of course, was Yes! So I dropped the DOA Sony off at Vlad’s home last week. He disassembled the radio, only to discover that my ICF-SW100 was a victim of the (dreaded) damaged ribbon cable.

A short history of the Sony ICF-SW100 and SW100S

These radios are indeed brilliant, incredible performers for their miniscule size. Yet the first generation of ICF-SW100 radios–those produced before the fall of 1997–have a design weakness: the ribbon cables which connect the upper and lower portions of the radio’s clamshell design eventually fail. Multiple openings and closings bend and cut the cables, rendering the otherwise remarkable little radio useless.

SWLing Post contributor, Dan Robinson, recently shared his knowledge about the ICF-SW100 series. Dan notes:

SW-100 Seekers Beware

As shortwave veterans know, the classic SONY miniportables — SW-1, SW-100(S) and SW-07, represented some amazing technological achievements. SONY managed to shrink some fantastic technology into these receivers, including (with the last two in the line) — SYNC capability. The SW-07, which was the last of these receivers, still brings some high prices on Ebay.

But if you are searching for the ICF-SW-100S there are some things to consider and beware of. As everyone knows, the SW-100 suffered from the well-known ribbon-cable failure problem. SONY addressed this problem in later serial numbers, and changed the design of the radio case.

Modified SW-100s have a notch where the top cover meets the base.

There are some dishonest sellers out there who are trying to pass off older version SW-100s as modified ones. Usually, the tip-off is that the photograph in the Ebay auction will be dark or out of focus, so it’s hard to tell if the radio is the modified version or not.

It has become quite rare to find an original SONY modification kit, which includes a new top cabinet of the SW-100. And some sellers are trying to get as much as $300 for these, though they rarely sell at this level.

This repair kit was on eBay at time of posting.

ICF-SW100 modification kit found on eBay at time of posting.

It’s also becoming rare to see SW-100S radios new-in-box. I had two of these, sold one and kept the other.

If you’re after one of these marvel radios, do what everyone should do when considering items on Ebay — ask many questions about [the] cosmetic condition, accessories, serial numbers, etc.

Universal Radio, a trustworthy seller I know, had fully disclosed the model number and problems with this radio, so I knew exactly what I was buying. Dan has a very good point, though: unless you know the seller to be honest, do your research and ask questions!

The ailing ICF-SW100

Vlado discovers the faulty ribbon cable (click to enlarge)

Back to my ailing unit: Vlado delivered the news about the ribbon cable via text message, and though I was well aware that the chances were high that was the ribbon cable, I was a little bummed, to say the least, to get the formal diagnosis.

Why? As Dan mentions above, you’ll find that the SW-100S upgrade kit Sony produced in the 1990s is no longer available new; sellers typically list these kits at prices in excess of $300 US. Out of my budget.

But Vlado, ever the intrepid engineer, had no idea I would be disappointed with this news; he was just giving me this FYI via text. Indeed, he seemed entirely unfazed, as in, hey, no serious internal damage here…

Another hour passed. Then came another message from Vlad; this one simply said: “Call me.”

Oh no, I thought. But I called, and Vlado answered cheerfully, “Hello? Tom, is that you? Sorry, I can’t hear you very well because your SW100 is playing too loudly. Hang on–let me turn the volume down!”

Vlad installs the replacement ribbon cable (click to enlarge)

“What!?!” I responded, in utter disbelief.

Yes, he’d got it working! It seems that Vlad had unearthed an old DVD player in his garage that he’d kept merely for parts. He opened it up, identified a ribbon cable with the right pitch, then cut and folded the cable to fit into the SW100. Ingenious!

That’s Vlado for you!

And should I be interested in replacing this used cable with a new one–or in repairing other Sonys–Vlad directed me to eBay listings for new cables which only total about $20, shipped. Truthfully, I’m in no hurry, as this one is functioning perfectly and changing out the ribbon cable seems to have no effect on stored memories, etc. With a single affordable eBay purchase of multiple cable sets, it occurred to me that Vlad would have enough replacement cables to repair the SW100 many times over…

So I bought the cables. (This one for the narrow cable and this one for the wider one.)

My “new” Sony ICF-SW100

Needless to say, I’m very pleased with my “new” (to me) SW100. It’s a little masterpiece of receiver engineering in such a tiny package. And since the ICF-SW100 is unquestionably the smallest portable I own–and is one of the few I own with a proper line-out jack–it may very well become my go-to radio for one bag travel.

It’s in the bag: listening to the ‘SW100 before I pack it for my next trip!

Stay tuned the review…

Vlado’s radio E.R.: the doctor is in

As I’ve said, Vlad is one of the most adept repair technicians I’ve ever known. At my prompting, he’s kindly agreed to let me promote his services here on the SWLing Post. Vlad acknowledges that he “likes a challenge,” adding that he enjoys nothing more than making repairs even when”parts are scarce” and radio”surgery” is required. Moreover, his bench fees will be quite reasonable, especially considering what you receive: new life for a failing radio. So, if you’ve got an ailing rig on your hands, and don’t mind waiting for Vlad to get to it, send it to his radio emergency room, where radios (like my Sony) have life breathed back into them once again.

Long live the Sony ICF-SW100! And long live Dr. Vlado, who makes this possible with his creative (and nearly miraculous) repairs.

To contact Vlad, simply contact me with a description of your radio and its problem and I’ll put you in touch with Vlado.

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Dan’s advice for prospective Sony CRF-320/CRF-330 owners

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In response to our Sony CRF-320 post, SWLing Post contributor, Dan Robinson, comments:

“Thanks for posting this item. I’m the moderator of the Yahoo group for SONY 320 and 330s — they are quite common these days on EBay.

The key, however, is condition and many of them are often suffering from one or more problems common to this receiver including: stuck S-meters, faulty LEDs, gears in the main and AM/FM tuning sections that are dried out and cracked, belts in the recorder (in the 330s) that need replacing, and a variety of cosmetic issues.

Prices for 320s range from the high hundreds near $1,000 and slightly higher, and for 330s usually well above $1,000 to near $2,000 for units that are in 9.0 or higher condition. Prospective buyers of these wonderful radios need to ask numerous questions of sellers so as to avoid problems down the line.”

[…]I will add a couple of things — the 320 on Ebay right now that Tom identified has the old style rotary clock, while the main photo is one with the LED clock, which is more desirable on the used market. The seller of this particular 320 is well known on Ebay for his extensive write-ups of equipment, quite informative and useful, and he has the advantage of access to a local electronics shop that actually still does repairs of 320s and 330s.

Keep in mind that, generally speaking, prices for 320s as I said and depending on condition generally are in the $1,000 range and top out in the $1200 -1400 range. CRF-330s usually bring more because of the added tape recorder in the bottom of the unit. Of course, the market and demand determine price, and anyone who is really after one of these classic radios might be willing to pay more for a 320.

Excellent advice, Dan! Thank you for sharing.

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