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Why Shortwave Radio is Still a Superior Educational Technology

PES-SouthSudan

Children in South Sudan listen to their shortwave radio (Photo: PESS/ETOW)

Reader and contributor Dr. Ed Harris recently authored an excellent article in which he describes why shortwave radio remains a practical and accessible educational technology in today’s world.

And he should know.  Ed––a long-time DXer and world traveler, currently studying to be a ham radio operator––is also a professor of educational leadership at Oklahoma State University College of Education, where he teaches courses in leadership, ethics, and research. Additionally, he oversees the Brock International Prize in Education, which discovers and awards the best ideas in education and showcases them to the world.

Ed is also an Ears To Our World advisory board member––not to mention, a good friend: we’ve travelled together on behalf of Ears To Our World to offer support with educational technologies in parts of the world where they’re needed.

Ed has kindly allowed me to post his full article here on the SWLing Post, as I believe many of you will appreciate this.


whole-earth-catalog

Using  “Whole Earth” Criteria to Explain Why Shortwave Radio is Still a Superior Educational Technology

Ed Harris, Oklahoma State University – College of Education

            As a professor of education, I see concerted efforts across the planet to increase educational opportunities for all global citizens. Governments and institutions are acknowledging that education is vital to social and economic sustainability for everyone, everywhere. For some global citizens, the convergence of the Internet with modern instructional technologies has provided advanced and rewarding educational opportunities.  However, numerous geographical regions are still plagued by educational inequities that result in social and economic disparities.

While there are no quick fixes for these inequities and disparities, the issues can be boiled-down to two interrelated factors:  (1) isolation (i.e., insulation from available and accessible services) and (2) poverty (i.e., insufficient means to procure services). Isolation is a huge problem domestically and abroad. In all parts of the world, rural is rural.  In those areas where people are geographically or politically isolated from available services, the Internet and innovative technologies actually perpetuate educational inequities and widen the digital divide between the have and have-nots.  Moreover, in many areas, the lack of money for basic electricity and Internet subscriptions compound the problem, making educational inclusion virtually impossible.

A few years ago, a colleague and I published an article regarding the above dilemmas in light of the accessibility and sustainability of modern educational technologies.[1] We explained that although we live in the 21st Century, we could benefit significantly from the criteria that “Whole Earth Catalog” used to select sustainable, user-friendly tools for their publications.

For you non-Baby Boomers, the “Whole Earth Catalog” was a collection of creative articles and durable, practical tools published from 1968 to 1972 and sporadically thereafter.[2] Whole Earth editors did not just curate tools; they curated ideas and promoted a philosophy by which to use those tools. Whole Earth technologies were timeless and provided opportunities for personal growth and social development. Before any product was included in the Catalog, it must have met a rigid set of standards:

  1. High quality at a reasonable cost,
  2. Easily accessible,
  3. Useful and relevant to independent or self education, and
  4. Capable of launching a cascade of new opportunities.

Rather than applying the above criteria specifically to radio, we applied them to a wide array of instructional technologies. However, when shortwave radio is held up to the scrutiny of Whole Earth’s standards, readers can see below that radio clearly ascends to the top of the “ed-tech” pyramid.

Standard 1: A Good Tool Offers High Quality at a Reasonable Cost

EtonRadioHigh quality and affordability are obvious factors in any discussion on sustainable technologies. Educators must consider the cost of ownership and return on investment as they seek to adopt new educational technologies. While computers and mobile devices are quite popular in today’s educational settings, their cost prohibits them being used by many across the globe. On the other hand, shortwave radio is relatively inexpensive. Low-cost shortwave receivers can be purchased in almost every part of the world.             Moreover, simple, inexpensive shortwave regenerative receivers can be easily built with a few parts. Even in the most disadvantaged parts of the world, one can find shortwave receivers, and many radios now include hand-cranked devices that provide power without batteries. To add to radio’s cost appeal, listening is absolutely free and does not require special apps or subscription fees.

Standard 2: A Good Tool is Easily Accessible

In the “Whole Earth” days, accessibility was expressed in terms of how easily the technology could be mailed or shipped. For instance, while large harvesting combines were not seen in the publications, sickles, pocketknives and books were prominent. An inaccessible tool is useless, while an accessible tool is invaluable.

Academic fields such as Educational Technology differentiate between (1) availability, which concerns how readily obtainable a technology is, and (2) accessibility, which concerns the skills one needs to successfully employ the technology in the manner intended. An example might be digital library services. Most universities make available a wealth of research materials online for anyone who has university credentials to log in to their system. However, while these materials are available, they are not necessarily accessible to users who are unable to navigate the library website, remember his or her login credentials, or have the search skills to interact efficiently with digital databases. Thus, when adopting new educational technologies, both availability and accessibility must be considered and planned for.

Earth-ClipArtRegarding the accessibility of shortwave transmissions, radio may be the most available and readily accessible technology in the world. Shortwave radio remains the only medium capable of direct communication from one country to listeners in another country without intermediaries such as satellites, cable companies, or Internet providers. Shortwave signals can be accessed anywhere on the planet, and radio is a safe way of providing information to areas of conflict or during an emergency.

Unlike most other radio communications frequencies (such as those used by FM radio, WiFi networks and Mobile Phones) which are limited to local or line-of-sight propagation, shortwave radio signals bounce off the ionosphere and blanket earth with broadcasts and information.  Every corner of the globe can receive shortwave radio broadcasts with even a simple $20 portable radio. When radio is seen as an available, accessible, and affordable educational tool, potential educational opportunities sources dramatically widen and serve to bridge the digital divide.

Standard 3: A Good Tool is Useful for Self-education

ETOW-Uganda-RadioFor educators, self-directed learning (SDL) is a top goal in the educational process. In SDL, the individual learner takes the initiative and the responsibility for what occurs and has the opportunity to choose from a range of available and appropriate resources. Thus, since opportunity and choice can empower a person to grow in his or her capacity to be self-directing, these factors should be nurtured and promoted in educational processes.

The Internet is example of a technology that nurtures self-direction and promotes both informal and formal learning opportunities. However, even the Internet does not surpass radios usefulness in self-education. Research indicates that radio is more than just music, news and entertainment. Rather, radio listening can meet educational needs such as individualized learning, belongingness, self-esteem, independent learning, and even self-actualization in a variety of different ways. Listeners can engage simply by selecting the format type that meets their requirements at any specified period of time.[3]

Moreover, radio listening is edifying because listeners hear current events and ideas from different perspectives across the world. The choices of the learner in radio listening are paramount because he or she can choose the station, choose what they want to get from the experience, and choose with whom they would like to share that experience.

Standard 4: A Good Tool Launches a Cascade of New Opportunities

Opportunity-ClipArtWhole Earth editor Kevin Kelly often reminded readers that all technologies create their own set of problems; however, superior technologies result in new opportunities and ways to solve problems.[4]  Whole Earth was at the forefront of reminding readers of the cycle of  (1) new tool, (2) new challenges, and then back to (3) new tools. In educational terms, when a learner completes a learning cycle, he or she is not only gaining personal and professional knowledge and skills, but impacting future learning as well.[5] The cyclical cascade of opportunities from shortwave radio is impressive. For example:

  • The opportunity of creative imagination and proactive listening. Radio listening feeds imagination and brings an auditory dimension to our lives. It allows for networks of mental associations, and facilitates the listener to vicariously “visit” new places and new cultures. These opportunities serve to facilitate the formation of identity, purpose, and listening skills vital to good communication.[6]
  • The opportunity of connections. Radio listening broadens connections and increases community. Radio listening helps both in making connections of desperate pieces of information and in being connected with each other and to the world. Understanding the interconnection of knowledge is vital in the learning process. Radio listeners hear different perspectives from around the world and are automatically put in the arena of connection making and discernment. Also, radio listening can be a community endeavor in itself.
  • The opportunity of inherent learning about radio. The radio is an educational device, and subjects that can be integrated in radio listening include geography, sociology, politics, mathematics, and a host of others. However, the radio device itself is instructional. Understanding electronics, circuit construction, safety, modes and systems, propagation of radio frequency signals, serving equipment, and progressing host of others.

Summary and Challenge

A good question would be, “Well, did Whole Earth Catalog include shortwave radios in their publications?” The answer is yes. In almost all their publications, radio – i.e., shortwave, amateur, electronics, books/guides, education, and/or communication – was referenced in some way. For example, on page 259 of the special 1994 publication, THE MILLENNIUM WHOLE EARTH CATALOG: Access to Tools and Ideas for the Twenty-first Century, the Sony ICF-SWIOO Receiver was showcased. In that edition, the authors commented, “No alternative yet proposed (satellite radio, personal wireless computer gizmo) offers the same combination of a cheap, portable receiver and program content that crosses borders unfiltered by any government or corporate gatekeeper.”

While technology is constantly evolving, the wisdom of Whole Earth prevails — the wisdom inherent in using technologies that promote a sustainable lifestyle. In education today, we are continually seeking innovative, timeless, and empowering technologies to promote sustained learning for all.  Just as the publishers of Whole Earth Catalog understood, educational technologies are best adopted from grassroots efforts, and those technologies adopted, must empower users to take learning, teaching and research to deeper, more meaningful levels.

The radio has been with us for a long time, is still be a superior instructional technology, and can have an important place in education. However, those of us who have this vision must collaborate to regenerate enthusiasm for this valuable medium as well as devise cost-efficient, user-friendly, and sustainable solutions. Some suggested goals could include the following:

  • Develop school broadcasts that include curriculum-based content and professional development content for educators;
  • Develop and utilize existing language learning programs aimed to teach a variety of languages;
  • Utilize interactive radio technologies that allow for asynchronous feedback and communication;
  • Develop cooperative relationships with regional governments and/or educational institutions to store and broadcast programs for broadcast to the peoples in their respective areas.

Innovative ideas, interconnections through sharing those ideas, and purposeful inclusion of technologies in today’s educational landscape echo the rationale behind Whole Earth Catalog. So in striving for sustainable tools for 21st Century education, as Whole Earth readers were reminded in every issue of the Catalog, we must seek technologies and skills that empower individuals to take ownership of their education, shape their environments, and especially, share the adventure with whoever is interested. When addressing these challenges, shortwave radio is still a viable, superior educational solution.

[1] See Susan Stanberry and Ed Harris’s Back to the future: Revisiting the “Whole Earth” concept of sustainable tools for 21st century education. Journal of Sustainability Education (2015 publication)

[2] While Whole Earth no longer prints a hard-copy version of the Catalog, one can see digital versions at http://wholeearth.com

[3] See Shannon and Brown’s article, Radio Listening as a Function of Basic Human Need: Why Did Maslow Listen to Radio?

[4] See Kelly, K. (2000). “Tools Are the Revolution,” in WHOLE EARTH CATALOG.

[5] Marra, R., Howland, J., Wedman, J., and Diggs, L. (2003). A little TLC (technology learning cycle) as a means to technology integration. TechTrends, 47(2), 15-19. Doi: 10.1007/BF02763419.

[6] See Susan Douglas’s (2004) book, Listening In: Radio and the American Imagination.


Ed Harris can be reached at [email protected] and would love to hear about your ideas of combining education and radio or advice on the ham exam.

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James reviews the Heathkit Explorer Jr. GR-150 TRF AM radio receiver kit

HeathkitExplorerJrMany thanks to SWLing Post contributor, James Surprenant (AB1DQ), who shares this review and photos of the new Heathkit Explorer Jr. TRF AM radio receiver kit:


 Heathkit Explorer Jr. Review

I received this Heathkit kit for Xmas from dear old Dad.

Heathkit Explorer Jr. Manual

The Explorer Jr. manual is very nicely done, spiral-bound, and very reminiscent of the old Heathkit manuals in terms of lay-out and detail.

Heathkit Explorer Jr. Retro envelope packaging

The packaging of the parts is also reminiscent of the old Heathkits with parts grouped into envelopes by phase, ie. “Active Components,” “Passive Components,” “Small Parts,” “Knobs,” etc.

The first night, I worked through completion of the circuit board attaching all electronic components and stopped at the step for winding the coil. I thought it would make sense to start fresh on that step since winding coils is generally a pain.

Even on the first night, I had a few criticisms:

  • A couple of the envelopes were ripped open when I unpacked the kit. There were nuts, bolts, spacers and an Allen wrench loose in the outer box. That said, no parts were missing.
  • I found two errors in the manual:
    1. The color code for one of the resistors was incorrect in the manual. With my aging eyes, and the miniaturization of components today, I always use an ohm meter to test all resistors before attaching them to the PCB when I build a kit.

      Incorrect color code in manual.

      Incorrect color code in manual.

    2. The circuit contains 10 resistors and all 10 were included in the kit. But one was completely missing from the step-by-step instructions. After I finished attaching all active and passive components, I had one resistor left over and fortunately there was a matching empty space on the circuit board for the same value resistor. I double and triple checked the instruction manual and I can not find where it calls for this resistor to be attached.
  • My biggest criticism so far is the fact that this kit is “solder-less.” All components are attached to the PCB with screws, lock washers and a nut. You insert the leads for each component through the over-size pass-through holes on the PCB, and bend the leads tight against the edge. Then you insert a screw in from the topside, place a lock washer on the bottom side and fasten with a bolt.
Bottom of the PCB board

Bottom of the PCB board

On the upside, the fact I didn’t need to work with a hot solder iron meant I felt comfortable building the kit at the kitchen table. (My XYL would not be pleased if she found burn marks on the table!) So I had a nicer environment to work in than the basement work bench.

Heathkit Explorer Jr. sheered off resistor leadsOn the downside, I managed to sheer off the leads on TWO resistors when tightening the screws. Fortunately I was able to replace the busted resistors from my on-hand stock.

The other odd thing about this method of attaching components is that Heathkit included a nifty screwdriver in the kit, but leaves it up to the kit builder to provide a small socket wrench or pliers to hold the nut in place while tightening the screw.

Finally, the instructions call for the kit builder to ‘bend the excess leads back and forth’ until they snap off, rather than instructing the kit builder to snip off the excess leads with nippers. That seemed really strange to me.

Heathkit Explorer Jr. Completed coil

I completed my build of the GR-150 Explorer TRF radio this past weekend. I had no difficulty winding the coil, which involved 56 turns of magnet wire around a ferite core and securing it with transparent tape.

Heathkit provided the black ties, which were too large.

Heathkit provided the black ties, which were too large.

The next problem I encountered was attaching the wound coil to the PCB. The kit came with two zip cords to use as fasteners, but the zip cords were much much too large to fit through the holes drilled in the PCB. So this required a trip to the hardware store.

You can clearly see that the holes are too small for the black cable ties.

You can clearly see that the holes are too small for the black cable ties.

Once I had the coil mounted, I encountered the problem again with the bolts and nuts shearing off the leads – this time, it took me about 4 tries to attach the thin fragile coil wires to the PCB. It’s a very fragile process that again had me wishing this was a solder kit.

Heathkit Explorer Jr. Top of PCB front

The rest of the assembly went well. The only other glitch I encountered was in assembling the cabinet, the kit came with six locking star washers for the cabinet, in fact the parts list indicates that six should have been included in the kit. But then the actual assembly called for 10 star washers.

Heathkit Explorer Jr. Top of PCB

Heathkit Explorer Jr. Nearly finished frontHeathkit Explorer Jr. Completed PCB mounted

So, how did the radio perform? About as expected. It is a single stage TRF receiver without a proper audio amplifier. The instructions say you should use earbuds to listen to the radio, but I found that my standard stereo earbuds to be off too low an impedance for while the radio worked, all stations heard were very faint – about as strong as you’d hear from a typical crystal radio kit.

Heathkit Explorer Jr. 1st run sticker

I hooked the radio up to a set of PC speakers which helped – a lot. Once I could hear the audio output, I was very pleased with the radio’s performance. The tuning cap is geared and it takes a good five turns of the tuning knob to cover the entire broadcast band. The radio was fairly sensitive and not too selective – again, as you’d expect.

So, was it worth it? For me, sure… but it depends on what you are looking for.

It’s a bit pricey for what you get, but if you want to support Heathkit as it attempts to rise from the ashes, and if you have the $$$ to ‘donate’ towards the cause, it may be worth it.

Heathkit Explorer Jr. Completed w. screwdriver

Here is my take:

The good

  • Very nice quality materials….the PCB, tuning cap, and cabinet were of a quality you don’t often see in kits.
  • Nostalgia factor–from the packing to the manuals, the kit really does capture some of the Heath nostalgia.
  • Level of detail in the step-by-step instructions.
  • Documentation. The manual ends with a very nice feature on radio theory and theory of the different stages of the TRF and how to read a schematic. It’s clearly written for a youngster as it’s complete with drawings of smiley-faced electrons moving through the components and circuits.
  • The radio does work and is a joy to tune across the dial.

The bad

  • Quality control is lacking. It’s hard to imagine a kit ever leaving Benton Harbor back in the day with such glaring errors in the manual (wrong color code, missing steps), or with the wrong size zip ties, etc.
  • Price. Even though the materials are high-end, the retail price seems a bit high.

The ugly

  • I really wish Heathkit had included either a built in audio amp circuit (there is plenty of room in the cabinet to add a simple IC-based amp), or would have marketed a separate audio amp kit. Having an amplified speaker would add a lot in terms of pleasure from the completed kit. Another kit vendor, Peebles Originals, peeblesoriginals.com, sells a nice little audio amplifier kit for use with their regen radio kits. I’ve built it, and it’s a simple straight forward kit. Heathkit could have done this and it would have made a big difference. (I think I’ll try my Peebles amp with the Explorer!)

Overall, I really enjoyed the build and I like the radio. I’m looking forward to see what the ‘new” Heathkit does next.

I applaud Heathkit for making a go at a come-back and will continue to support their efforts by buying and building their pricey stuff – yeah, I’m that guy.

73 de AB1DQ
James


James, thank you for not only sharing your experience–along with errors and omissions–but providing excellent, detailed photos. I can’t tell you how many times I’ve been confused by kit instructions and turned to Google to help me find photos and notes from other builders. Your details will help others attempting to build the Heathkit GR-150.

I hope you enjoy your new Heathkit! You’ll have to let us know how that Peebles powered speaker works with the G-150!
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Star Wars sound designer is, indeed, a radio enthusiast

StarWars-LogoSWLing Post readers may remember a post I recently published in which I believed I’d identified a familiar shortwave time signal station in the Battle of Hoth scene from The Empire Strikes Back. If you haven’t read this post, feel free to do so and listen to the embedded video/audio clips.

Upon hearing this, I went so far as to muse that the Star Wars sound designer might be a radio listener. I asked our readers if anyone could confirm this–?

Well, we’ve got our answer!  I’m truly indebted to an SWLing Post reader who passed my post along to his friend, Ben, who could provide this definitive response:

“This is Ben Burtt, sound designer of the Star Wars films. A friend sent me a link to this blog thinking I would like to comment.

Ben and old recorders

Ben Burtt with his recording gear, circa 1980. The mike on the stand at Ben’s feet is one from his grandfather’s ham radio station in the 1950s, or possibly earlier.

“The answer is yes, I have always been a ham radio enthusiast.”

 

“My grandfather, Harold Burtt, operated W8CD out of his home in Columbus, Ohio 1930s-1960s. I was enthralled as a kid listening to the sounds on his receiver. I heard alien worlds and cosmic ‘voices.’

Harold Burtt, (Chairman of the Psychology Dept Ohio State) with his attic gear approximately 1935

Harold Burtt, W8CD. (Chairman of the Psychology Dept Ohio State) with his attic gear,  approximately 1935

“So not only did I record his radio, but continued to do so on the Star Wars series and Star Trek as well.

My memory of the Hoth transmission was that it was WWV but it could have been CHU since I was recording all that interested me on the dial.”

Terrific! Thank you, Ben, for taking the time to respond. As I said, you’ve certainly started off this radio enthusiast’s year on the right wavelength…no doubt some of our readers will agree.

Indeed, the powerful sonic experience of the Star Wars and Star Trek films has, in my estimation, helped shape many of us into the radio/sound enthusiasts we’ve become–myself certainly included. Thank you, Ben, for this!  You’ve sharpened my ear to a greater appreciation of sound, especially filmic sound, and your work in particular.    

For readers who are less familiar with Ben Burtt’s work, check out his Wikipedia page and IMDB profile–you’ll find he’s been the sound designer on numerous influential films including the recently released Star Wars: The Force Awakens.

A special thanks to Ben Burtt for sharing these wonderful photos and kindly giving me permission to use them here on the SWLing Post.  I must say, considering my love of radio in the thirties, I especially like that photo of Harold Burtt (W8CD) in his shack.

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James put his ailing Sony ICF-SW55 on ice. Literally.

sony-icf-sw55c

Many thanks to SWLing Post contributor, James Patterson, who writes:

I have owned the Sony ICF-SW55 for around 15 years or more. I like to change my listening pleasure from radio to radio, giving each one a rest, as they are all different to a degree. So I put the SW55 away and it sat unused for about six moths, as with my radio collection, I had others to listen to.

But when I decided to listen to the SW55 again, it just wouldn’t power up at all. I have read posts from other listeners saying their radios won’t power up either after sitting for extra long periods. I think they are mostly Sonys.

I tried many times but no it wouldn’t power up; I decided I’d just keep it as a memory of a failed Sony radio. I’m aware that the capacitors do blow, and assumed that’s most likely the problem.

But I decided there may be another way to get it going again. I always check for [battery compartment] corrosion, but there was none.

I thought of a crazy idea of actually freezing the radio–just to see what may happen. So it was in the chest freezer for 3 hours. I then took it out frozen like an ice brick!!.

I took it outside to the blazing hot sun and let it fully defrost. I then plugged a DC power pack into it. The operating voltage is 6 volts. I pushed 9 volts into it, through the switchable power pack. I got a plastic clamp and clamped the on/off switch permanently “on”.  I could hear it turning on and off several times as the switch is electrically-activated.

Then all of a sudden it sprang to life–unbelievable! On it came at full volume, so I selected an AM station and it worked as good as it ever did. The sensitivity was always very good, and it still is.

So was it a “Fluke”, “freak of nature” just by chance, or was it the freezing that woke it up?

Well I’m not turning it off. I have new AA batteries in it, as well as the power pack that’s turned back to the correct 6 volts–and yes it’s still going!!

So maybe we should all start freezing our radios when they have given up the “ghost”!?! Don’t forget to defrost before powering up!! Maybe I’ve started a “new trend”. Any comments would be great! Thanks.

Thanks Thomas and have a great and happy New Year from New Zealand.

Wow–James, I’m not sure why this freezing method worked, but I’m glad it did!

I don’t think I could recommend that everyone try this but, James, you did this out of desperation since you essentially had a nice ICF-SW55 paperweight. What did you have to lose? I’m very curious if some engineers or electronics technicians could comment as to why freezing the radio helped.

I do know this: I would be cautious attempting James’ freezing method if you live in a humid environment. It’s possible that the condensation from the radio thawing could actually cause moisture damage. Obviously, in James’ case, it did not.

Thanks again, James–I hope your ICF-SW55 gives you many, many more years of service!

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A note of caution about Thunderbolt Magnum Heavy Duty batteries

AA-Batteries

Discount hardware store, Harbor Freight, sells packs of very affordable Heavy Duty batteries under the Thunderbolt Magnum brand name. Occasionally, Harbor Freight even gives large packs of these batteries away for free (with a coupon).

This is how I acquired a pack of 24 Thunderbolt Magnum AA cells earlier this year: for free during a store promotion.

In truth, I use quality rechargeable AA cells quite heavily (mainly Powerex and Panasonic Enloops). If I am reviewing a radio, I buy fresh Energizer or Duracell AA alkaline batteries to make sure the radio is receiving full voltage from the batteries during the evaluation.

But, on occasion, a cheap AA will suffice, right?

Not these.

I put three in a shortwave portable in June because all of my other batteries were in use. I had just planned to take the portable on a weekend trip.  Though it shouldn’t have been a problem, I forgot and left the batteries in the radio.

Tuesday afternoon, I checked the batteries because they were already dead. Turns out they were already leaking! I then remembered that other cells–from the same pack–had leaked in one of my kid’s flashlights.

It could be that I simply got a bad batch of batteries, but these cells really do feel of poor quality–I bet they weigh half that of most other Heavy Duty cells.

My advice? Free is too costly for these batteries. Stick with quality cells!

Now I need to go through my house and find where the remaining four batteries are hidden before they damage another device.

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History of Gerald Marcuse G2NM, founder of Empire Broadcasting

Eugen Gerald Marcuse (1886 - 1961) Source:

Eugen Gerald Marcuse (1886 – 1961) Source: The Reading and District Amateur Radio Club

Many thanks to SWLing Post contributor, Mike Barraclough, who writes:

The Reading and District Amateur Radio Club has released as a free pdf the history of Gerald Marcuse G2NM the founder of Empire Broadcasting who was granted a licence in June 1927 for a regular shortwave service of speech and music to the British Empire. These continued until August 1928. A statement from the BBC shortly after the licence had been granted “deplored them as an unfortunate publicity stunt.”

Click here to visit the Reading and District Amateur Radio Club page.

Click here to download this (brilliant!) history as a PDF.

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Best solution to restore a vintage plastic radio chassis?

Sony-ICF550W-FrontFriday, I brought home an untested, slightly grimy, Sony ICF-5500W. I purchased it through Goodwill for $20.

Sony-ICF550W-Right

I crossed my fingers as I put three C cells in the radio and turned it on. Fortunately, I was rewarded with brilliant audio. I tuned the ‘5500W on AM/mediumwave and heard CFZM,  500 miles to my north, and Radio Reloj, 860 miles to my south. A quick scan on the FM dial revealed that I could also hear all of my local benchmarks. Whew!

Other than the dial needing a little calibration, and DeOxit on a few pots, it’s in excellent mechanical shape.

Sony-ICF550W-Left

I started cleaning the radio last night using Q-tip cotton swabs and a vinegar/water solution.

I’d like to restore the hard plastic chassis’ original shine, though.

I was tempted to reach for some Armor All, but stopped myself short. I know it would give the ICF-5500W a nice shine, but would it cause any long-term damage to the black plastic or clear dial cover?

I know there are vintage radio restorers among the SWLing Post readership. Can someone offer advice on what’s the best product to use (or not use!) on my ICF-5500W?

If you have experience, please comment!

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