Charles "Copper" Slingsby, one of Cape Town's leading pioneer dxers, tuning in during the 1920's (Photograph with kind permission from David Slingsby).What began as a chance discovery of an interesting letter from David Slingsby on the KDKA website resulted in an astonishing further discovery - an unprecedented treasure trove of priceless QSL's and original letters, addressed to his grandfather Charles, from pioneering and experimental short wave radio stations which broadcast during the 1920's!
The likelihood of individual QSL cards and especially QSL letters to survive over 80 years is rare, so to discover that an entire collection from this era has remained intact (barely a few minutes from my QTH) is quite remarkable to say the least!
A rare January 1928 QSL letter from the BBC experimental shortwave station 5SW at Chelmsford was possibly one of the first replies to be received in South Africa. The reported date of reception in Cape Town was on the 1st and 2nd November 1927 : at least 10 days before the official commencement date of the 11th November that year. The station operated on 11 750 kc with a power of 15 kw.After a phone call to David, I was invited to view the astonishing well preserved collection of early QSL's, letters, log books and original newspaper cuttings, meticulously compiled by grandfather Charles.
Charles Slingsby, or "Copper" as he was nicknamed (he was born with a shock of red/auburn hair), was one of the first pioneering short wave radio enthusiasts to operate in Cape Town, South Africa. During the 1920's Copper dxed with a home constructed three valve receiver from his radio shack, situated in Belmont Road, Mowbray and later, Thelma Road, Claremont (suburbs of Cape Town).
Copper Slingsby's radio shack, situated in Thelma Road, Claremont (Photograph circa 1929 - with kind permission from David Slingsby).It is interesting to note that the Post Master of Cape Town, Mr. Girling, lived next door. Girling understood morse code and was able to pick up news from passing ships. Perhaps this futher helped to ignite Copper's interest in long distant radio reception.
Broadcasts were meticulously recorded in various log books. Fortunately, thanks to grandson David who has a great interest in family history, three of these logbooks have been preserved alongside the QSL's and letters and serve as a fascinating record of the long distance radio reception experienced in Cape Town during the 1920's.
Copper's dxing skills and follow-up reporting resulted in the various interesting QSL's and letters from pioneering and experimental short wave radio stations in the U.S.A. , U.K. and Australia. These stations appreciated the important feedback regarding distant reception. It must have been a pioneer dxer's dream to receive the enthusiastic replies from KDKA Pittsburgh, WGY Schenectady, 2NM Caterham, 5SW Chelmsford and 3LO Melborne to name a few!
A rare 1928 QSL card from the amateur experimental shortwave broadcasting station 6AG Perth Western Australia, operated by Wally Coxon. In 1928 the shortwave transmitter was co-sited with the mediumwave unit of 6WF on the rooftop of the Westralian Farmers building, located in downtown Perth. Operating on 33 metres with just 150 watts, the station would have been a memorable catch and an impressive dx achievement!Local newspaper reporters from the Cape Times and Cape Argus would often sit alongside Copper and write up world events from the broadcasts received on his radio. For example, the famous Jack Dempsey / Sharkey fight broadcast via KDKA from the Yankee Stadium, New York on the 22nd July 1927 was received at Copper's radio shack and reported by the Argus sports writer.
Copper Slingsby also wrote various articles which were published in the two local newspapers. He advised on the purchase or construction of a shortwave receiver, how to tune in and what one could expect to hear. "Wireless", especially shortwave, was in its infancy and the articles would have done much to promote an interest in tuning in.
A radio humour cartoon postcard from the 1920's - perhaps still appropriate over 80 years later!Charles Slingsby was born on the 17th May 1887. He joined the British forces in 1901 at the age of 14 as a bugler during the Anglo Boer War. He met and married Violet Alice Dove in a whirlwind romance lasting a week during WW I. They had four children, three of whom are still alive today. It is interesting to note that the family arrived back from Kenya and spent a brief time at Fish Hoek before moving to Mowbray.
My thanks and appreciation to David Slingsby for his kind hospitality (the coffee was most enjoyable by the way!), for preserving an important part of pioneering radio history and for his enthusiasm and willingness to share the fascinating collection and information.
"Copper" Slingsby inside his radio shack in front of a 1934 General Electric K-80 tombstone set (photograph circa 1935 courtesy David Slingsby).
Interesting Links to historical items from the Copper Slingsby Collection :
Early Christmas Radio Broadcasts
A newspaper article of an interesting and informative reflection of Christmas radio broadcasts logged by "Copper" Slingsby while tuning in from 1925 to 1930 at the Cape Town suburbs of Mowbray and (subsequently) Claremont - available here.
Inside The Radio Den Of A Pioneer Radio Listener
Another interesting newspaper article (dated June 23, 1934) which highlighted some of the stations and program details including historical broadcasts recorded in "Copper" Slingsby's radio log books - available here.
"Meet 'Copper' Slingsby - the man to know in Radio"
"Copper" Slingsby also promoted and sold radios for Philips. Two proof copies of Philips Radio advertisements featured the pioneer dxer:
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