Category Archives: Radios

A three transistor homebrew shortwave radio

(Photo source: netZener.net)

(Photo source: Instructables)

SWLing Post contributor, Richard Langley, writes:

Came across this site on building a 3-transistor shortwave radio similar to the kit offered by Radio Shack years ago:

http://www.netzener.net/index.php/8-project-articles/5-3-transistor-short-wave-radio

It was featured on the Instructables site:

http://www.instructables.com/id/Three-Transistor-Short-Wave-Radio/

Very cool!  Thanks for sharing this, Richard.

When I have a little time, I’ll go through my parts box and see how many of these components I already have. The author also supplies an excellent assembly manual for download and print. It would be fantastic if someone would kit up the parts list and offer it as a package. Regardless, this will make for a fun winter project!

An eBay caution: some sellers are out for a buck–or hundreds

RF2200
SWLing Post contributor, Dan Robinson, has recently noticed exorbitant prices demanded by certain sellers on eBay. Dan writes:

As readers of SWLing Post know, Ebay prices–at least asking prices–can often go completely off the scale.

While it’s true that prices can be as high as the market will bear, some recent examples are cases in point. The RF-2200 by Panasonic was an amazing radio for its time, competing with the SONY 5900W and some other models back in the early days of sophisticated portables. The 2200 was known, and is still respected, for its directional AM loop antenna, and is a prized part of the stables of many SWL’s today.

But let’s face it…only a 2200 found new-in-the-box, or in [like]-new condition, should fetch anything over $250-300. Other examples recently include a DX-302 for which the owner was seeking something like $1200. Price inflation has also been seen with SONY ICF-6800Ws. The [difference] with these sets is that they truly are in new or 10.0 condition, worth several hundred dollars.

New SONY ICF-2010s–[and] there are still some circulating that are new-in-the-box or in [like]-new condition–can and do bring prices north of $400, sometimes more. So do new-in-box SONY ICF-SW100s if they are complete with all accessories, in the box–but beware, they should be the newer modified versions and not the old version (you can tell this by looking at the hinge on the SONY, which should have a notch to indicate the revised version of the radio).

Another classic portable that deserves somewhat higher pricing is the Panasonic RF-B65. In [new-in-the-box] condition, these can go for more than $300.

So, [unless] you’re seeing astronomically high prices for RF-2200s, stop and think about it. These are old portables, and you should not be paying exorbitant prices–UNLESS you [encounter] a time capsule with a radio in the box that was never used. Even so, buyers need to ask multiple questions of sellers to protect yourself.

I agree completely, Dan. If you want to purchase an item at a fair market price or even a bargain, you must do your research before simply using the “Buy It Now” option on eBay. There are plenty of sellers who charge fair prices still; leave the stratospheric-priced items on the eBay shelf.

Tecsun-PL-365-Ebay-Crazy-Price

A case in point (above): never mind the grammar error in the above listing, the $125 “Buy It Now” price for the Tecsun PL-365 is frankly excessive. The PL-365 is identical to the CountComm GP5/SSB–a radio I recently reviewed–and is available new from Universal Radio for $79.95 plus shipping. And since there are currently no other listings for the PL-365 on eBay (I’m not sure why) this price might appear reasonable to a new buyer.

This same seller initially offered the Tecsun PL-365 for a much higher price–in excess of $180, I believe. While this seller has excellent ratings, and no doubt would stand behind the product, the markup is simply too high for me to endorse (hence, no eBay link here).

In the past, I’ve also noted a semi-rare vintage radio–a “boat anchor” variety with a market price of perhaps $1,500–up for auction with a first bid amount in excess of $20,000 US! Yet I felt confident of the $1500 market price because I checked and cross-referenced it in Fred Osterman’s Shortwave Receivers Past & Present, which provides fair market values.

So, while I continue to support eBay, which remains one of the most secure platforms from which to buy unique and vintage goods on the open market, I want to encourage readers to heed Dan’s warning: research all pricing before making radio purchases on eBay…and keep the holes out of your pockets. Note that I will never directly link to unreasonable eBay listings.

The new Sangean ATS-405 shortwave portable

Sangean-ATS-405[UPDATE: Click here for a full review of the Sangean ATS-405]

Many thanks to SWLing Post contributor, Aaron Hyde, who reports that Sangean has a new travel radio on the market: the Sangean ATS-405.

Aaron writes:

“While looking around the internet today, I came across a new DSP shortwave radio called the Sangean ATS 405. The 405 looks a lot like its 404 predecessor except that it includes 3 bandwidths, 148 memories, a squelch control and comes along with some other interesting features.”

The ATS-405 came as very much a (welcome) surprise to me as Sangean hasn’t introduced a new shortwave radio in years. This radio is obviously based on a DSP chip and has three selectable bandwidths–I hope its AGC circuit is well suited for weak DX. I am a little disappointed the ATS-405 doesn’t have a tuning wheel. Still, I hope this will be a winner.

The ATS-405 owner’s manual (download here) lists the following features:

  • Full shortwave 14 meter bands
  • Five tuning methods-direct frequency access, auto scan, manual tuning, memory recall and rotary tuning
  • ATS (Auto Tuning System)-auto scan and preset stations
  • Shortwave meter band selection
  • 148 station presets
  • 2 alarm timers by buzzer and radio
  • Real time clock
  • Adjustable sleep timer
  • Tone control (Music/Normal/News)
  • 1 kHz fine tuning
  • Squelch function adjusts the receiving threshold and eliminate weak transmissions
  • Easy to read LCD display with backlight
  • Eco-friendly recharging function with LED indicator
  • Stereo/mono switch

I will plan to purchase an ATS-405 in the near future and review it in due time. Please comment with your impressions if you’ve purchased one!

The Sangean ATS-405 is available from the following sellers from $89.00 to 95.00 US:

Many thanks agin, Aaron, for the tip!

Jon spots a Yaesu FR-101 on eBay

YaesuFR101

Many thanks to SWLing Post reader, Jon, who writes:

“Just noticed this very clean Yaesu FR-101 this morning on eBay.  When I first saw the FR-101 in the search results, I thought it was the more popular FT-101 series transceiver. Not sure where the price will go on this one, but I would sure snatch it up if I found it at a hamfest!”

Many thanks, Jon. I was not aware that the FR-101 had a general coverage receiver; the seller lists the frequency range as “1.8 – 29.9 MHz continuous.”

Click here to view on eBay.

The Panasonic RF-2200: an early birthday gift

Panasonic-RF-2200-1

This week, I purchased a radio that I have lusted after for years: the Panasonic RF-2200.

I justified this eBay purchase because June is my birthday month and…well…do I need anymore justification!?!  Just look at this beautiful analog dial:

Panasonic-RF-2200-2

In truth, I’ve been wanting a benchmark portable medium wave receiver for ages, and I believe there are few better than the venerable RF-2200.

Panasonic-RF-2200-3

I picked the RF-2200 this morning and I’ve only had it on the air a few minutes. It effortlessly picked up my local benchmark medium wave and FM stations. The audio fidelity is brilliant and the ‘2200 appears to have a very low noise floor. I haven’t had a moment to truly cruise the shortwave bands, but I plan to over the course of this week and shall report back.

James’ vintage transistor radio collection

In response to my recent post about the vintage Arvin 68R58 transistor radio, SWLing Post reader, James Patterson, has shared photos of his collection in New Zealand. James has captioned each photo below:


Sanyo

This portable Sanyo was bought at a “Second Hand” shop. It had badly corroded battery connections. I repaired it and it works fine now.

Very early National portable with twin speakers, broadcast [band] and [shortwave. Works very well.

Very early National portable with twin speakers, broadcast [band] and [shortwave. Works very well.

This PYE Caddy was actually made here in New Zealand. I believe the design was from the UK though. It still works very well.

This PYE Caddy was actually made here in New Zealand. I believe the design was from the UK though. It still works very well.

The PYE Caddy without the plastic cover.

The PYE Caddy without the plastic cover.

Very popular in their day, the RED National Panasonic pocket AM Transistor 6. Works well.

Very popular in their day, the RED National Panasonic pocket AM Transistor 6. Works well.

Very early AIWA pocket Transistor 6. Still works well.

Very early AIWA pocket Transistor 6. Still works well.

The "Murphy 8" Transistor radio. Broadcast band only. Wooden case in fab condition. Works very well.

The “Murphy 8” Transistor radio. Broadcast band only. Wooden case in fab condition. Works very well.

Murphy8-BackOpen

This is the rear view of the “Murphy Transistor 8.” I gave it a new battery holder.

This is a "Murphy Transistor 7+"  Im not sure what the "+" means because it does have only 7 transistors. Very good performer for its age. Wooden case is identical to the previous Murphy 8.

This is a “Murphy Transistor 7+” Im not sure what the “+” means because it does have only 7 transistors. Very good performer for its age. Wooden case is identical to the previous Murphy 8.

This is the rear view of the "Murphy Transistor 7 plus." All very original, and works fine.

This is the rear view of the “Murphy Transistor 7 plus.” All very original, and works fine.

This National Panasonic DR 28 is not part of my early AM Transistor radio collection. It is, however, part of my Short Wave Radio collection.

This National Panasonic DR 28 is not part of my early AM Transistor radio collection. It is, however, part of my shortwave radio collection.


Many thanks, James, for sharing photos from your collection! You certainly have some gems in there. I was not at all familiar with the New Zealand-made PYE Caddy, in fact. I’m curious if other radios were made in New Zealand in the past.

I bet you and I might agree that the Panasonic DR-28 (a.k.a. RF-2800 in North America) hardly feels “vintage,” but at 37 years old it certainly qualifies by most standards–hard to believe. The RF-2800 pops up on eBay quite often and has certainly held its value well. (Click here to search.)

Seeing the DR-28/RF-2800, in fact, is making me lust even more after the venerable Panasonic RF-2200! Alas…so many radios!