Tag Archives: CRF-320

Video: Repairing, restoring and modifying a Sony CRF-320

Sony-CRF-320

Many thanks to SWLing Post contributor, Ken McKenzie, for sharing the most comprehensive video you’ll ever find on restoring the Sony CRF-320 receiver:

Click here to watch on YouTube.

Make sure you check out Mr. Carlson’s YouTube channel, Mr. Carlson’s Lab where you’ll find repair videos ranging from solid state to tube gear.

Thanks for the tip, Ken!

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eBay Find: the Zenith Trans-Oceanic Royal D7000Y, with Comparisons to the Sony CRF-320

ebaySometimes when  browsing eBay you’ll come across a hot item that wasn’t even on your wish list or Followed eBay Searches. This was the case for me early last month when I spotted a new listing for a Zenith Royal D7000Y-2 Trans-Oceanic that’s arguably the best performing T-O ever made. It’s not the most collectable (the final R7000 series has that distinction), but is the final model with the desirable band spread tuning arrangement. The D7000Y is also the last of the hand-wired Trans-Oceanics. Some claim this model has the best audio of the transistorized T-Os, too.

I have a soft spot in my heart for Zenith Trans-Oceanics, as the co-author of the “Royalty of Radios” reference book, the late Prof. John Bryant, was my best friend for many years. John also wrote books on Zenith’s corporate history and other models of Zenith radios. The transistorized Zenith Trans-Oceanics were unobtainable dream receivers for me when I was a teenager in the mid-1970s.royalty of radios book

I watched this Buy-It-Now auction for three days and was very surprised it remained available, especially after noticing its superior condition compared to other auctions for the same model. Finally on the third day I pulled the trigger–I’m not a collector of vintage radios but I couldn’t miss the chance to let this fine old Zenith follow me home. At a Buy-It-Now price of $219 including cross-country shipping, it seemed like a no-brainer decision.

When the radio arrived–packed extremely well–it was in ever better condition than pictured and described (I’d call it 9.8 on a 10 scale).  The package included the original hang tag, QA stickers, owners manual, service manual, marketing literature and even the original monaural earphone and AC power cord. All dial lamps and the chart light worked fine. The previous owner said the T-O was fully aligned a year ago, and indeed I found that the reception quality on the built-in whip antenna is great. I’d love to know where this receiver was stored for the last 38 years; it was clearly someone’s gently used, cherished Zenith.

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A folder of high resolution photos of this receiver can be viewed here.

Compared Against the Sony CRF-320

Besides simply enjoying receivers I get a kick out of comparing them against each other, and against various other ones owned by my radio hobby friends. Thanks to the loan of a vintage Sony CRF-320, I was able to directly compare it to my Zenith Trans-Oceanic Royal D7000Y-2 receiver. My friend’s CRF-320 is the equal of my Zenith in condition and quality. Each of us would like to own both of these radios!

This is an interesting pairing, since the Zenith was among the last of the premier, USA manufactured portable receivers (analog only, all hand-wired chassis), and the CRF-320 was an equally prestigious portable receiver of the “latest technology”–digital/analog readout with printed circuit board construction.

Eugene_F._McDonald_the_Commanderand_founder_of_ZenithOnce a leading receiver brand, Zenith did not react quickly enough to changing trends and business climate after the death of its founder, Commander Eugene F. McDonald.  The 40 year old (1942-1982) proud line of Trans-Oceanics gave way to new, semi-automated methods of building receivers with inexpensive labor from Asia.

After an initial production run of the next (and last) R7000 series, manufacturing was moved to Taiwan. The receiver was built just as well as the previous Royal D7000, but used PCBs inside and the useful band spread frequency ranges were done away with (at the expense of ease of tuning). Still, Zenith T-Os couldn’t compete on price or performance against the Sony CRF-320, and the R7000 Trans-Oceanics were the last (and now most collectible) versions.

This YouTube video compares reception of these two vintage receivers with mid-morning signals on the 31 meter band, from the Seattle area:

Both radios were used with their built-in whip antennas although I couldn’t extend the Zenith’s its final four inches due to ceiling height in the room.

In my opinion, the CRF-320 is superior in keeping signals steady with its AGC, but the D7000Y-2 excels in audio quality and is neck-and-neck in most other respects. The Zenith may have performed a bit better with weak signals if the ceiling in my kitchen was a few inches higher! (Both radios have substantially long built-in antennas, and each are very well matched to their circuitry for excellent reception.)

There are many references around for the Zenith Trans-Oceanic series, but not a lot has been published on the CRF-320. Here is one page with good details on the Sony:  http://www.shortwaveradio.ch/radio-e/sony-crf320-e.htm

Jay Allen’s excellent article on restoring a Zenith T-O Royal D7000 has very clear photos of the receiver’s interior: http://radiojayallen.com/zenith-royal-7000/

Moral of the Story?

I’ve been active on eBay since 1998. As with garage sales, the chances of an excellent “find” increase with the time spent in the pursuit. Sometimes you just get lucky though and find a very desirable item remaining unsold for days, such as this Trans-Oceanic! It’s all about being in the right place at the right time. Since I’ve bought the receiver I’ve yet to see any other D7000s of equal or better quality, despite some with Buy-It-Now prices of up to $450 plus shipping (edit 12/16: I spotted one that appears in equal condition to mine, but for a Buy-It-Now of $675 + $40 S/H).

Guy Atkins is a Sr. Graphic Designer for T-Mobile and lives near Seattle, Washington.  He’s a regular contributor to the SWLing Post.

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

SonyCRF-320In 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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Sony CRF-320 sighting on eBay

 

SonyThis morning, while scanning eBay, I ran across this serviced and restored Sony CRF-320. It’s listed with a BuyItNow price of $1,795.00 plus $63.30 shipping. Though that price seems steep to me, it appears these trend for $1,880 on eBay.

SonyCRF-320The CRF-320 is certainly a beautiful receiver and, aesthetically, everything I love about radios of the era. I’ve never had the pleasure of operating one, and–though I’m a bit of a radio collector–it’s simply out of my price range. If I ever manage to procure one, it’ll probably be a fixer-upper or a garage sale find. Well…one can dream…

I’ve heard the CRF-320 is a true performer. I’m very curious if any SWLing Post readers have one. If so, please comment with your thoughts or even a review!

Click here to search eBay for the Sony CRF-320.

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