Tag Archives: Dayton Hamvention

Photo tour of the 2016 Dayton Hamvention Flea Market

Weather yesterday morning at the Dayton Hamvention was quite pleasant–cool and partly cloudy (the rain moved in by afternoon).

As I walked around the Hamvention Flea Market yesterday, I snapped a few photos. Here they are, in no particular order: DSC_4319 DSC_4322 DSC_4325 DSC_4324 DSC_4328 DSC_4331 DSC_4330IMG_20160520_075126938_HDR IMG_20160520_075121124_HDR IMG_20160520_074332811_HDR IMG_20160520_075341759 IMG_20160520_075329979 IMG_20160520_075159494_HDR IMG_20160520_075155113 IMG_20160520_075152645 IMG_20160520_075710997_HDR IMG_20160520_075615952 IMG_20160520_075612972 IMG_20160520_075421198 IMG_20160520_075409581 IMG_20160520_080045692_HDR IMG_20160520_075918036 IMG_20160520_075833970_HDR IMG_20160520_075805524_HDR IMG_20160520_075714430_HDR IMG_20160520_080615604 IMG_20160520_080608484_HDR IMG_20160520_080049374_HDR IMG_20160520_081227401 IMG_20160520_080858804 IMG_20160520_080756463_HDR IMG_20160520_081605030 IMG_20160520_081446494 IMG_20160520_081433518 IMG_20160520_081429333 IMG_20160520_081243730 IMG_20160520_081958207_HDR IMG_20160520_081954219 IMG_20160520_081712679 IMG_20160520_081707464_HDR IMG_20160520_081638710 IMG_20160520_082353651 IMG_20160520_082133630 IMG_20160520_082523096 IMG_20160520_082515865 IMG_20160520_082401932 IMG_20160520_082621244 IMG_20160520_082616116 IMG_20160520_082608481 IMG_20160520_082549817 IMG_20160520_082532180 IMG_20160520_082527070 IMG_20160520_083008664 IMG_20160520_082915263 IMG_20160520_082822600_HDR IMG_20160520_082753149 IMG_20160520_082638684 IMG_20160520_083114407_TOP IMG_20160520_083109994 IMG_20160520_083050444 IMG_20160520_083012704_TOP IMG_20160520_084820717 IMG_20160520_084814420 IMG_20160520_084434979_TOP IMG_20160520_084432287_HDR IMG_20160520_083441054 IMG_20160520_084916091 IMG_20160520_084837231_HDR IMG_20160520_084834039_HDR IMG_20160520_084829641_HDR IMG_20160520_084827204 IMG_20160520_084936474_HDR IMG_20160520_084933213_TOP IMG_20160520_084921682 IMG_20160520_091641178_HDR IMG_20160520_091307701 IMG_20160520_090914965_HDR IMG_20160520_091812984 IMG_20160520_091806073 IMG_20160520_091740687 IMG_20160520_091645628_HDR IMG_20160520_111743184 IMG_20160520_092821734_HDR IMG_20160520_091830009 IMG_20160520_111758227 IMG_20160520_111753608 IMG_20160520_162656634_HDR

The fellow who owns the military radio truck mobile unit (above) allowed me to take a few photos inside:IMG_20160520_162600670IMG_20160520_162545778IMG_20160520_162534748IMG_20160520_162631741IMG_20160520_162615428 IMG_20160520_162611742 IMG_20160520_162608672

I hope to post some photos of the inside exhibits tomorrow! Stay tuned!

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National Parks On The Air (NPOTA) activations today

IMG_20160519_105823050_HDREn route to the 2016 Dayton Hamvention, I’m doing a few National Parks On The Air (NPOTA) activations with my my buddy, Eric (WD8RIF).

Eric is currently the number one activator in the state of Ohio.

NPOTA is a great excuse to get outdoors and play radio.

For me, it’s a great excuse to test the LNR Precision LD-11 and my new QRP Ranger portable power pack.

The QRP Ranger (left) and LNR Precision LD-11 transceiver (right)

The QRP Ranger (left) and LNR Precision LD-11 transceiver (right)

I am loving the new QRP Ranger power pack–it is the solution I decided on after publishing this post a few weeks ago. It’s a little pricey, but it’s built like a tank, very lightweight, includes a charge controller made specifically for the LiFePo cells, and made here in the USA. It also had a very readable LED display that my buddy Eric says is, “reminiscent of the displays on the Apollo 11 module.” He’s kind of right!

It’s so nice to have both a volmeter and ammeter on the front panel.

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We just finished activating the Hopewell Culture National Historical Park (I’m writing this post while Eric drives us to our next activation). I made 12 contacts running SSB at 8 watts. Eric made 16 contacts via CW at 5 watts.

We have planned two more activations this afternoon:

  • Charles Young Buffalo Soldiers National Monument at 16:30 UTC
  • Dayton Aviation Herital National Historical Park at 21:00 UTC

I’ll be calling CQ on 14.290 MHz and 7.290 MHz +/-.

Please hop on the air listen and/or answer my call if you’re a ham!

Of course, tomorrow through Sunday, you can find us at the Dayton Hamvention in booth SA0359 in the Silver Arena.

Hope to see you there!

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Stop by our new booth SA0359 at the Dayton Hamvention next week!

Hamvention-2016

For the sixth year in a row at the Dayton Hamvention, fellow volunteers and I will be representing the charity Ears To Our World (ETOW).

I always enjoy meeting SWLing Post readers who stop by our booth to introduce themselves.

Note: New Booth Location

We’ve been moved to a new table this year: SA0359 in the Silver Arena. Indeed, we may have two tables set up: one with Ears To Our World information and another with soldering irons to build HumanaLight kits.

DaytonMap-ETOW-SWLingPost

Click on map to enlarge

Here’s the full map for reference (PDF).

If you’re not familiar with Ears To Our World and our mission to empower children and teachers in the third word through radio and other technologies, check out our website.

HumanaLights!

HumanaLight-Front

Note that this year we will also give away our HumanaLight kits to those who donate $15 or more to ETOW (while supplies last). 

Look forward to meeting you in Dayton!

-Thomas (K4SWL)

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Hamvention find: the Arvin 68R58 AM transistor radio

ARVIN-68r58-DSC_1390Though I believe I spent more money at the Dayton Hamvention this year than I have in all previous years, I only purchased one radio: the Arvin 68R58 eight-transistor.

I spent a whopping $5 on the little Arvin in the Hamvention fleamarket. To be fair, the seller sold it for this modest price because he was not sure if the radio worked.  But when I unsnapped the back leather cover, peered inside, and found the works remarkably clean, I suspected it might…

ARVIN-68r58-DSC_1373No original power supply was included, of course, and I was a bit concerned when I saw the somewhat out-of-character plastic battery holder. In the filtered fleamarket light, it appeared to me as if it required proprietary batteries–the holder appeared too small for C cells, and too large for AAs. There was no indication of the type of batteries it used, but since the spec read “6 volts,” I knew I could build a small AA battery holder, if need be.

So, at $5 (I bargained him down from $10, based on the doubt of operation) it was a very low risk purchase, and a potentially a fun project.

ARVIN-68r58-DSC_1385

Back at home, I popped open the battery holder and looked inside…And I discovered the Arvin did, indeed, take four C cells. Simple enough! After inserting fresh batteries, I turned on the radio via the tone pot, and instantly heard beautiful, rich audio.

What I thought would be a project radio ended up being fully functional, and was, moreover, in tip-top shape.

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So far, I’ve been very impressed with the Arvin’s AM sensitivity and audio fidelity. No doubt the generous ferrite rod antenna is doing the trick on medium wave.

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Last night, as I tuned through the AM broadcast band, I was able to null out unwanted stations and noise amazingly well. There is something to be said of transistor radios from this era–let’s just say, they’re classics.

ARVIN-68r58-DSC_1376The Arvin has a simple set of controls: tone, tuning, and volume. There are no filter selections, of course, but I can tell that it’s quite wide; perhaps 8 or 9 kHz.

ARVIN-68r58All in all, I’m very pleased with my little purchase, and the Arvin has become my new (vintage) bedside radio. Last night, I tuned in one of my favorite AM stations on 740 kHz, CFZM in Toronto, Canada.  CFZM (a.k.a. “Zoomer Radio”) is not only a benchmark, but a right of passage for any worthy AM radio in my household. The Arvin passed the Zoomer test with colors flying.

And, yes, it even soothed me to sleep.

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Now I only need to properly clean and restore the Arvin’s leather chassis and perhaps build a 6V-regulated linear power supply.

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Next time you pass by a 1960s/70s vintage transistor, grab it! I’m certainly happy I did.

Now, I think I’ll turn on the Arvin, sip some dark beans, and put up my feet in the Pawley’s Island hammock…Cheers! Summer’s on the way.

ARVIN-68r58-DSC_1381Want one of your own? A quick search reveals that the Arvin 68R58 can be found on eBay for quite reasonable prices. Click here to search eBay for an Arvin.

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Photos from the 2015 Dayton Hamvention Flea Market

Weather yesterday morning at the Dayton Hamvention was quite pleasant even if a little fickle at times. I had time in the morning and an hour or so in the afternoon to browse the various treasures scattered about in the flea market section. Here are a few photos of the vintage gear I found:

IMG_20150515_155324563_HDR-001 IMG_20150515_155434678_HDR-001 IMG_20150515_155443439 IMG_20150515_155448977_HDR IMG_20150515_155454414_HDR Zenith-Transoceanics RCA RCA-Dial HRO Zenith-Transoceanic-7000 BC-348 Sky-Buddy IMG_20150515_080420028 IMG_20150515_080728372 IMG_20150515_083338068_HDR IMG_20150515_084608184_HDR IMG_20150515_084618551_HDR IMG_20150515_084624951_HDR IMG_20150515_084715842_HDR IMG_20150515_090737380 IMG_20150515_091306152 IMG_20150515_092249982_HDR IMG_20150515_092652251_HDR IMG_20150515_093056292_HDR IMG_20150515_093106560_HDR IMG_20150515_093155333_HDR IMG_20150515_093210149_HDR IMG_20150515_093216094 IMG_20150515_094335853 IMG_20150515_094524046_HDR IMG_20150515_133437879

My friend and ETOW volunteer, Christine, purchased the mint condition Zenith Transoceanic above. I’m not sure I’ve ever seen a better example of a vintage Transoceanic 7000 for sale. A good bit of well-deserved beginner’s luck for Christine!

If you’re also at the Dayton Hamvention, please stop by table 411 in the Ball Arena and introduce yourself!

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Going to the Dayton Hamvention? Stop by our booth!

Hamvention

For the fifth year in a row at the Dayton Hamvention, fellow volunteers and I will be representing the charity Ears To Our World (ETOW).

I always enjoy meeting SWLing Post readers who stop by our booth to introduce themselves.

For the third year in a row, we will be at booth BA411 in the Ball Arena. Here’s a map for reference.

HumanaLight-FrontIf you’re not familiar with Ears To Our World and our mission to empower children and teachers in the third word through radio and other technologies, check out our website and this article from the Wall Street Journal.

Note that this year we will also give away our HumanaLight kits to those who donate $20 or more to ETOW (while supplies last). 

Look forward to meeting you in Dayton!

-Thomas (K4SWL)

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Dashtoons: Über cool radio art by Jeff K1NSS

Source: Dashtoons.com

Source: Dashtoons.com

Among the fascinating people I met at the Dayton Hamvention this year was Jeff Murray, K1NSS. Though Jeff and I have communicated online, our paths had not yet crossed in real life; I was very pleased to finally meet him in person.

SWLing Post readers will have seen Jeff’s name before: he’s a talented graphic artist (and ham, obviously) whose work focuses on the radio community and culture.

You may recall that Jeff created the art for the the Shortwaveology website, not to mention the cool retro graphic you’ll find on the Shortwave Shindig tee.

Jeff also creates custom QSL cards, comic books, clip art, and promotional material for companies like Alpha Amplifiers…all of it inspired.

s38-flatIf Jeff designed a spaceship based on the aesthetics of the Hallicrafters S-38, it would not surprise me in the least.

Do yourself a favor and check out Jeff’s website at Dashtoon.com. It is chock-full of radio wackiness and whimsy. You can lose yourself there and thoroughly enjoy the scenery.

Jeff Murray (K1NSS) on right, and me (K4SWL) on left among the Dayton Hamvention tail-gaters.

Jeff Murray (K1NSS), left, and me (K4SWL), right among the Dayton Hamvention tailgaters.

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