Category Archives: Radio History

Jagadish Chandra Bose and the invention of radio

Jagadish Chandra Bose in Royal Institution, London

Jagadish Chandra Bose in Royal Institution, London

Many thanks to SWLing Post reader, A Black, for sharing the following article from the excellent Hackaday blog:

J.C. BOSE AND THE INVENTION OF RADIO

The early days of electricity appear to have been a cutthroat time. While academics were busy uncovering the mysteries of electromagnetism, bands of entrepreneurs were waiting to pounce on the pure science and engineer solutions to problems that didn’t even exist yet, but could no doubt turn into profitable ventures. We’ve all heard of the epic battles between Edison and Tesla and Westinghouse, and even with the benefit of more than a century of hindsight it’s hard to tell who did what to whom. But another conflict was brewing at the turn of 19th century, this time between an Indian polymath and an Italian nobleman, and it would determine who got credit for laying the foundations for the key technology of the 20th century – radio.

Appointment and Disappointment

In 1885, a 27-year old Jagadish Chandra Bose returned to his native India from England, where he had been studying natural science at Cambridge. Originally sent there to study medicine, Bose had withdrawn due to ill-health exacerbated by the disagreeable aroma of the dissection rooms. Instead, Bose returned with a collection of degrees in multiple disciplines and a letter of introduction that prompted the Viceroy of India to request an appointment for him at Presidency College in Kolkata (Calcutta). One did not refuse a viceroy’s request, and despite protests by the college administration, Bose was appointed professor of physics.

Click here to continue reading on Hackaday…

Historic Bawdsey Radar site receives £1.4 million grant from the UK government

(Source: Bawdsey Radar)

(Source: Bawdsey Radar)

Many thanks to SWLing Post contributor, Dan Robinson, for sharing this article about the historic Bawdsey Radar site:

(Source: Engaget)

save-radarA radar site considered by some to be as historically important as Bletchley Park will be preserved, thanks to a £1.4 million ($2 million) grant from the UK government. The Bawdsey facility in eastern England, established in 1938, was the world’s first operational radar station. The then-brand new technology helped the allied forces win the Battle of Britain, and some historians think it may have shortened World War II by as much as two years. The facility was closed in 1991, and is on Britain’s “at-risk” heritage list because of structural issues and water damage.

According to the preservation group Bawsdey Radar, construction work will start in September 2016 and the building will open to visitors in September 2017. The goal is not just to conserve it, but also to unveil a new visitor exhibition featuring physical and virtual displays. The UK’s “Heritage At Risk” adviser John Etté said the facility “played a vital part in the development of radar technology during [WWII], and had a huge impact on post-war electronics and defense system,” including GPS, water technology, radar guns and the microwave oven.[…]

Continue reading at Engaget…

eBay find: Acoustical Manufacturing of England

Acoustical Mfg England - AM Tuner

Many thanks to SWLing Post contributor, David Korchin (K2WNW), who writes:

I remember when I was a young kid back in Saskatoon, being invited over to a friend’s house to hear his “English stereo.”

We both worked at the CFMC-FM radio back then (he did the 10 PM-2AM slot, and I worked overnights). He being a little older, wise, cooler, than me, I jumped at the chance to browse his vinyl collection, read through his punk magazines and generally look to have his coolness rub off on me.

It was the first time I heard a Quad stereo system. He had the pre-amp, amp, and FM tuner (I think he might have had a Technics turntable, and a pair of Klipsch speakers). I remember being awestruck by the warm sound and the precise imaging of the system. Tracks that I thought I knew intimately took on new dimension. I wanted that system!—and I still don’t have it.

But I’ve noticed a few pieces on eBay, and I wondered if you’ve heard of them, too?

http://ebay.to/1n90DYm

Surprisingly, Acoustical made MW and SW tuners, too!

Acoustical Mfg England Shortwave

http://ebay.to/1PxLSEP

Here’s an early FM example: 

Acoustical Mfg England FM Tuner

http://ebay.to/1n915Wz

And a later one, that I think I saw at his house: 

Acoustical Mfg England FM TunerII

http://ebay.to/1OoIQoJ

These are all tube rigs, OM! And if nostalgia carries any weight, they are worth checking in to.

Many thanks for the links and trip down memory lane, David!

Some of you may know that David is my ultimate radio enabler; my savings account nemesis! 🙂  He about got me this time, too. I almost pulled the trigger on that Acoustical Manufacturing Shortwave Tuner. It is a beauty indeed!  Though not tested (and one would assume it could use some new caps), it does look very clean and I bet it performs like a charm.

Still, I’ll pass this time. I recently dipped heavily into my radio savings so I need to allow a little time for the account to build up again!

I’m curious if other SWLing Post readers are familiar with Acoustical Manufacturing products? Please comment!

The Russian Woodpecker movie: now online

woodpecker_movie-graphic

Many thanks to SWLing Post contributor, Andrea Borgnino, who tweets:

The Russian Woodpecker movie is now on Vimeo, Google Play & Itunes:

http://www.russianwoodpecker.com/

Thanks, Andrea!

It appears the movie costs $9.99 (buy) or $3.99 (rent) via Google Play, $12.99 (buy) via iTunes, and $12.99 (buy) or $4.99 (rent) via Vimeo on Demand.

Via Amazon, the movie costs $9.99 (buy) or $4.99HD/$3.99SD (rent) but, if you’re an Amazon Prime member, it’s offered as a “free” stream. If I can finish a few projects on my table, I hope to watch this tonight.

Recordings of final mediumwave broadcasts from Luxembourg, France and Germany

AM-Dial-Digital-Grundig-Mediumwave-MWMany thanks to several of you who recorded the final sign-ons and sign-offs of several European broadcasters who pulled the plug on mediumwave transmissions this past weekend.

SRAA contributor, Richard Langley, recorded the following broadcasts and posted them to our Shortwave Radio Audio Archive. Click on the following links for recordings and Richard’s excellent notes:

Bernhard Albicker of IntervalSignals.org and AM-Tuners also contacted me with links to recordings he made of the following:

Radio Luxembourg (RTL) special broadcast in honor of the former English service:

Notes:

  • 00:00:00 CRI german, no closing announcement
  • 00:07:49 RTL special broadcast: final 2 hours of RTL “Great 208” from Dec., 1991
  • 02:12:12 National Anthem of LUX

Deutschlandfunk DLF final sign-off:

A special thanks to Bernhard for including the following notes from the final DLF broadcast (in German):

  • 01:03 Announcement of closure. This announcement was broadcast before the full hour since the month of November followed by time signal and news.
  • Within the news at 05:05–item about shutdown of Medium Wave “Era of medium wave ends in Germany” followed by weather report at 05:37
  • 46:35 switch from regular programming to interval signal loop
  • 51:57 sign off transmitter Nordkirchen 549kHz
  • 53:13 sign off transmitter Thurnau 549kHz

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.

SRAA Recording: The Happy Station Show circa 1979

Crosley-Dial-BlackAndWhiteMany thanks to Shortwave Radio Audio Archive contributor, Richard Collings, who recently submitted this amazing off-air recording of the Happy Station Show. Richard notes:

The Happy Station Show of Sunday 23rd December 1979. A pre-recorded special Christmas show with Tom Meijer. Broadcast from 0930 to 1020GMT [on 9895 kHz and received in Plymouth, Devon, UK].

Click here to download the recording as an MP3, or simply listen via the embedded player below:

Note that this is one of many archived off-air recordings found on the Shortwave Radio Audio Archive.