Category Archives: Vintage Radio

Dan’s respect for Hammarlund and the SP-600 series

Many thanks to SWLing Post contributor, DanH, who shares the following comment in response to this news article from the Citizen Times featured in Radio Waves yesterday:

Here are my thanks to members of the Amateur Radio community and The News-Record & Sentinel for remembering the legacy of Hammarlund Manufacturing Company Incorporated. It is good to know that this part of our radio history is valued and preserved. I loved the newspaper article!

I have a few vintage Hammarlund radios including two Super-Pro models. The SP-600-JX-21 is one of my daily drivers. This relatively late production SP-600 is in stock condition with the exception of a half dozen electrolytic capacitors that I replaced mostly in the power supply. By the time this SP-600 was built in 1957 Hammarlund had replaced the short-lived black beauty electrolytes with ceramic disc capacitors. Like military and industrial users I upgraded the original nickel plated tube shields with IERC heat dissipating tube shields where possible. I also installed vintage GE No. 1847 long-life incandescent bulbs as direct replacements for the brighter (too bright, for me) No. 47 dial lamps.

Here are my two most recent reception videos of the SP-600. The first features reception of Radio National da Amazonia and the second is a brief operating demo of the SP-600. The loudspeaker used in both videos is a full-range vintage Jensen 10? with matching transformer from the 1950’s instead of a communications range speaker typically used with these radios. This makes a big difference when listening to broadcasts.

This old Hammarlund is still working pretty well.

RN da Amazonia

SP-600 operating demo

Wow! Thank you for sharing this, Dan!

I used to own an SP-600 myself and I do miss it. The only reason I sold it is I was struggling to find a spot in my very compact shack where I could keep it on the air as a daily driver, yet still have enough room to bring new radios and accessories into the shack for evaluation. Moving it around all of the time (especially higher on my radio shelves) was incredibly difficult as she’s a hefty girl indeed! I ended up selling the ‘600 to a good friend for a song. That’s okay because like you, I know he’ll keep her in prime operating condition and I can even pop by to visit when I wish! I do miss having the ‘600 in the shack, though. It was truly a champion MW receiver as well!

Hammarlund HR-10: David seeking advice about weather frequency adjustment

Many thanks to SWLing Post contributor, David Korchin, who needs a little advice regarding his recently restored Hammarlund HR-10:

After doing a heart transplant on my Hammarlund HR-10 Weather Sentry multi band receiver (I found a rough user on eBay and swapped out the chassis into my unspoiled case) the rig is running to spec; MW is very strong with that long bar antenna, the FM+AFC is terrific , and I’ve been sandbagging 75-80 m hams in their AM QSO’s. But the Weather band is fixed reception at 162.550 MHz—that works in New York City but the NOOA stations out here in easternmost Suffolk County NY use different frequencies. I’m wondering if the radio can be adjusted to another frequency? Or the crystal swapped?

Any ideas would be appreciated!

Please comment if you can help David sort out how he might add or modify the HR-10’s weather frequency!

Guest Post: Zenith Trans Oceanics Still Command Big Prices

Many thanks to SWLing Post contributor, Dan Robinson, for the following guest post:


Zenith Trans Oceanics Still Command Big Prices

by Dan Robinson

For many radio collectors and users, the Zenith Trans Oceanic R7000-2 is a must-have item in the collection. This was the final version of the Zenith Trans Oceanic line that stretched back for decades — production was shifted to Taiwan and tuning in this radio is accomplished with internal gears, with concentric knobs for main and fine tuning.

The R7000-2 has Longwave, AM, FM and importantly for fans of aircraft listening, the radio
has excellent VHF reception. The huge Zenith TO telescopic aerial is a real eye turner — it is
super tall and compares only to the SONY CRF-1 in length.

Some years ago, the used market saw a few NIB or LNIB Zenith R7000-2 every year or so.
That hasn’t been the case — at least it was not until just recently when a LNIB TO appeared from a California seller.

NIB or LNIB R7000-2 radios could often bring more than $1,000 and sometimes much higher —
even as high as $1500!

That did not stop bidding on this-2 R7000-2 from topping the $700 mark and reaching nearly
$800 in this auction.

This does not mean, however, that every R7000-2 will be out of reach but other R7000-2 radios on eBay at this time suffer from cosmetic issues of one kind or another (see photos) such as detached side vinyl and missing antennas.

Amazingly, as this is being written there is yet another R7000-2 on eBay, complete with original
box and papers, and the original purchase receipt. This one could well hit the $1,000 mark.

If you’re hunting for an excellent late production Zenith TO, this may very well be the time
to pull the trigger — but for one in 9.9 to 10.0 NIB condition you will pay a price!

Click here to check this Trans Oceanic R-7000-2 out on eBay.

Paolo warns of persistent classifieds scams targeting radio collectors and advises how you can be scam savvy!

Many thanks to SWLing Post contributor, Paolo Viappiani (SWL I1-11437), who shares the following guest post:


A recent resurgence of Internet scams involving quality radios

by Paolo Viappiani (SWL I1-11437)

After my previous post on this subject, I found on the Internet other very dangerous fraud attempts concerning high-quality radios offered at very convenient prices. Below, you’ll find the details of a recent attempt concerning the highly-desirable SONY CRF-V21 receiver.

The methods are always the same, but the scammers greatly refine their fraudulent techniques, even going so far as to carry out real identity thefts, as in this case.

Of course, I knew from the beginning that it was a fraud (I don’t let myself be fooled anymore!), but I tried to continue corresponding with the scammer in order to get as much data on his real identity as possible. At the same time, however, I reported the fraudulent advertisement to the site webmaster in order to prevent other users from falling into the trap. The ad was promptly removed, but the scammer noticed it and immediately he slipped away…

Here is the story…

I have been trying to detect and report Internet scams from some time (since I was scammed!), and recently I found an advertisement for a SONY CRF-V21 radio, described as working and in good cosmetic conditions, on the Italian website “Clasf”, look at the picture below:

The radio was offered for Euro 2.600 from a seller who supposedly resided in Rome, Italy.

I sent him a message through the “Clasf” site and almost immediately I received a reply from someone who claimed to reside in Reichertshofen, Germany.

Déjà vu… Germany, Spain or Portugal always seems to be the same story…

But this time the very serious thing is the fact that the scammer identified himself as an “implantology dentist”–a fake identity–also providing a counterfeit website:

From my investigation it appears that both the picture and the website were stolen from a true professional from Hamburg, Dr. Bernhard Brinkmann, look at the websites (here and here).

Of course I tried to contact Dr. Brinkmann and I still make all the documents available to him, in case he wants to prosecute the thief.

About the pictures I received from the scammer (you’ll find some of them below):

All photos were stolen from a Canadian eBay advertiser instead:

So, buyer beware! The number of frauds in the radio market on the Internet is growing day after day, and it always advisable to keep your eyes wide open, even in the rush to purchase a much desired item at an affordable price.

Today scam techniques are increasingly refined, as shown in the example reported above.
Sincerely I don’t know if this user has something to do with the other European scammers (supposedly from Spain and Portugal) I quoted in my former post. The Italian Postal Police, after having examined the headers of the e-mails that I received along with other documents, believe that such scammers can reside anywhere in the world.

Most scammed

Anyway, the three “most scammed” radios are currently the Panasonic RF-8000, the Panasonic RF- 9000 and the Sony CRF-V21 (pictures below):

Please also notice that a number of advertisements on the most popular classifieds sites (Quoka.de and ebay-kleinanzeigen.de in Germany, Subito.it, Clasf and AAAnnunci.it in Italy, Le Bon Coin in France, ComoFicho in Spain, etc.) still are mirrors for larks only, and you have to pay a great attention in order not to be scammed.

A recent trip over all the mentioned sites revealed that only a few ads are really true…

Red Flags

I repeat some notes about scammers and their usual techniques:

A.) The scammer advertises a very rare radio in like-new conditions at an unbelievably low price. The buyer does not want to miss the bargain, so he contacts the seller and promptly transfers the money to him without further ado, but after that he waits in vain for the delivery of his item.

B.) If you contact the seller, the item is always abroad. The alleged seller then proposes to handle the purchase through a “trust company”. The radio should be paid in advance and the amount sent via cash transfer, but after that you never hear anything from the seller again.

C.) Alternatively, the buyer is requested to to deposit the money to the eBay company account to get the product. But the account is fake (eBay HAS NO “Company Account” and never handles private transactions!), so the buyer loses his money and receives nothing in return. Please also notice that often the fraudulent sellers offer a free period for evaluating the item, saying that if you do not like the device you can send it back. Please don’t fall into this trap, it is only one of the means the scammers use to entice you to purchase, but IT IS NOT TRUE AT ALL!

I repeat also some useful advices in order to make secure and safe purchases on the Internet:

1.) Always beware whenever the item is in a place (or a country) different from the one that was specified in the advertisement; also there is a valid reason for suspicion when the name or the address of the advertiser does not match the seller’s ones;

2.) Do not completely trust the pictures sent by the seller (they could be stolen from the Internet) and don’t forget to proceed to a “Google Reverse Image Search” in order to find the sources of similar ones;

3.) Always ask the seller for some specific pictures or videos (radio precisely tuned to various frequencies and/or modes) and do not accept any runarounds about it (“you can try the radio for some days”, etc.);

4.) Never pay the item in advance by rechargeable credit cards, Western Union or other non-secured/guaranteed ways of payment. Also Bank Transfer (Wire Transfer) is not a secure form of payment in order to avoid frauds;

5.) Always ask the seller for paying by PayPal “Goods and Services” (NOT “Send money to friends”); via “Goods and Services”, your purchase will be fully covered by the PayPal warranty.

In the case you are a victim of a scam anyway, please always report the incident to the Police or the Judiciary of your Country, and don’t forget to also warn the site where the announcement was found.

Best regards!
Paolo Viappiani – SWL I1-11437


Thank you so much for sharing this, Paolo! All very solid advice for avoiding scams. 

If you think about it, scammers want to optimize their scam profits per transaction–in other words, go for the “low-hanging fruit.” This is why quality, rare radios are their bait of choice. They know there are motivated collectors and buyers who need to act quickly in order to secure a deal. The stakes are very high if you’re purchasing a rare/vintage radio via online classifieds sites. 

Bookmark this article. Before making a radio purchase, re-read this post and follow Paolo’s advice. I promise: real vintage/rare radio sellers will happy take specific photos and videos in order to prove that the radio is indeed in their possession and that it functions as specified. If you receive an excuse–any excuse–from the seller, consider that a major read flag and do not proceed. 

Thank you again, Paolo! I hereby name you an honorary SWLing Post Investigative Reporter!


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Mario suggests a virtual visit to Schulman Auction

Many thanks to SWLing Post contributor, Mario Filippi, who writes:

You may already know about Schulman auctions, but if not here’s the site: https://www.schulmanauction.com/vintage-electronics/

Even if one is not interested in vintage electronics it’s still a great window shopping experience.

Have a great day and 73’s

Thanks for the tip, Mario! I have browsed their offerings in the past and it is an impressive amount of gear. As you say, a great place to window shop and possibly even place a bid!

Regency TR1: Anniversary of the first commercially available transistor radio

Many thanks to SWLing Post contributor, Bill Tilford, who shares the following:

Today is the anniversary of the announcement of the first commercially available transistor radio, the Regency TR1, in 1954. It wasn’t very good, but it started something.

You can tell something about the frequency allocations of the time by how the numbers are spaced.

To put the ad below in context, the median weekly family income in 1954 was about $81.00.

Thank you for sharing this, Bill! If you’d like to read more about the TR1 and view a wide variety of product photos, check out this dedicated TR1 website.

I’m curious if any Post readers own a Regency TR1. Please comment!

Flea Market Find: David restores a Hammarlund HR-10 solid-state portable

Many thanks to SWLing Post contributor, David Korchin, who writes:

Stumbled on this rig at an estate sale and laid out a cool $5.00 for her. She was mostly in pieces in a big plastic bag covered in a LOT of dust, and the battery compartment had seen better days. But I thought I could get it going.

Once I got to the chassis I noticed someone with a Golden Screwdriver had been rooting around in there (the PS module was missing screws to the frame and there was some solder bits dancing around inside).

Threw in 4 C cells: pots were noisy, but there was sound, and after liberal application of De-Oxit and some scrubbing the thing snapped to life! Quite good MW reception: I snagged KMOX 1130 St. Louis at 06:30 GMT this morning, a good hop of 960 miles.

Hammarlund only made this Weather/Marine band receiver in 1969-70, so it’s a rare bird, though probably not collectable, per se. Still, it was fun to get the thing operational.

Oh wow! Thanks so much for sharing your flea market find with us, David! I’m so glad you were able to not only give this HR-10 a proper clean-up, but also bring her back to life–and even snag some DX!

And your photos, as always, are simply gorgeous.

I’m curious if anyone else in the SWLing Post community owns or has owned the Hammarlund HR-10. Please comment!