Category Archives: Radio history

Hope Hampton, 1922 Queen of the “How To Make”

HopeHamilton

Film actress Hope Hampton starred in several silent movies. With the dawn of the sound era, she retired from the cinema and turned to opera, singing with the Philadelphia Opera. She returned to the screen in 1938, in The Road to Reno. She died in 1982 at the age of 84.

And in the 1920’s, she had an interest in radio. In the top photo, she is shown using one of the piano wires as an antenna. And the lower photo shows her confidently handling a soldering iron as she solders the tuning coil of her set. The pictures above appeared in the July 15, 1922, issue of Radio Digest.

Here, she appears with Lon Chaney in The Light of Faith (1922):

https://www.youtube.com/watch?v=U8zPmWFZn-Q

Hope Hapmpton, undated photo. (Wikipedia)

Hope Hapmpton, undated photo. (Wikipedia)

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QST and 73 Archives

I’m occasionally asked where I find material for this site. Most of it is found at AmericanRadioHistory.com, which has an archive of millions of pages of old radio and electronics publications. Much also comes from Google Books.

For Amateur Radio, a treasure trove of information is the QST Archive, which includes every issue of QST back to 1915. The search engine is not the best, and some of the scans are of rather poor quality. But it’s a great source of information.  (You must be an ARRL member and logged into your ARRL account to view articles.)  All issues of 73 Magazine are also available for free download at Archive.org.

If you’re looking for a more user-friendly version of these two resources, they are available at a reasonable price from Amazon at the links below. The QST CD covers up through 1941, and the 73 CD covers all issues.






1940 One Tube Shortwave Receiver from Popular Science

1940PSOneTubeThis little one-tube short wave receiver appeared in Popular Science 75 years ago this month, April 1940.  It uses as 12B8GT tube, a combined triode-pentode. The pentode section is used as a regenerative detector, and the triode is pressed into service as a diode, serving as the rectifier. The set runs directly from 120 volts AC. A 360 ohm resistor in series with the filament drops the voltage to 12 volts, and a hefty choke and two capacitors filter the power supply. Even though it’s run directly from the AC mains, the schematic shows no connections directly to the chassis, so as AC-DC sets go, this one is relatively safe to operate.

According to the accompanying article, the set could pull in signals from South America and Europe most evenings.

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1955 CONELRAD Receiver

1955ConelradRXUnder the headline, “Are You Ready For CONELRAD?”, the April 1955 issue of Radio News carried the plans for this small CONELRAD receiver which could be easily carried in a pocket or glove compartment. The circuit is very similar to the Conelrad receiver carried by Boys’ Life the following year.  This receiver also consists of a crystal set followed by a one-transistor audio amplifier.

The article describes CONELRAD, and notes that “the responsibility of the individual citizen and particularly of the electronic technician and experimenter would be to provide themselves and their families well ahead of time with some means for receiving Conelrad broadcasts under any or all emergency conditions.” The article noted that receivers should be exactly calibrated, to avoid losing valuable seconds fumbling around trying to find 640 and 1240 on the dial. The article suggests using a signal generator to calibrate and mark the dial before an emergency.

1955ConelradSchematicIt then offers the circuit shown here, since it would be “highly advisable to have available at all times a portable battery-operated radio. The average portable radio is fairly cumbersome to carry about over any appreciable distance and its power requirements are high enough to make it impossible to keep in operation continuously.

The author notes that his original plan was to have one transistor serve as the detector, but had some difficulty in designing the circuit, due to the low input impedance of most transistors. Therefore, like the author of the Boys’ Life design, he settled on a diode detector, with one stage of audio amplification.

Unlike the Boys’ Life model, which was mounted in a cigar box, this one is mounted snugly in a small plastic box. The author notes that “as most old crystal set men will recall, a fairly long antenna and a good ground are required for best results.” Therefore, he recommended taping 25-50 feet of fine wire to the case for use as an emergency antenna.

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Marianne Brown, 2AOA, Radio Pioneer

MarianneBrown1920

Here, in the April, 1920, issue of Radio Amateur News, we see the station of Miss Marianne C. Brown of of 206 W. 86th Street, New York City, which is the corner of 86th and Broadway.

Her receiver, designed by herself, was able to tune 300-1200 meters, which took in nearly all of the commercial stations. She also reported that it was very satisfactory for reception of wireless telephone stations and arc stations. It was usable either with an indoor loop or an outdoor antenna.

Still under construction was her transmitter, consisting of a 1/2 KW transformer and oil condenser. She expected to have the transmitter in working order in a short time.

She was listed in the 1920 call book as 2AOA.  Another short biography of this wireless pioneer can be found at this link.  She held a commercial license and trained as a marine operator, but theNavy had a policy forbidding women serving in this position.  She did get a position with the Marconi company testing equipment.

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1915 Radio Truck

1915RadioTruck

A hundred years ago, the public works department of Baltimore had equipped this truck with a wireless receiver, capable of receiving messages while the car was being driven at high speed through streets flanked with high buildings. The set was capable of receiving messages within a 10 mile radius, allowing crews to be dispatched quickly to any emergency situation. Among other equipment, the truck contained a pump capable of pumping 12,000 gallons per hour. It is shown here in the March, 1915, issue of Popular Mechanics.

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The Record-A-Tape: 1971

recordatape

As far as I can tell, this is an idea that never made it. Other than this ad which appeared in Billboard on February 27, 1971, and on other dates, I’ve been unable to find any reference to the Record-A-Tape. The machine was loaded with up to fifty different albums. When a customer wanted to purchase one on 8-track, the machine would crank it out a copy in 3-1/2 minutes. The distributor would take care of royalties, the retailer didn’t have to worry about inventory, and the customer would never find anything out of stock.

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Walgreen’s Aetna Midget Radio, 1940

WalgreensRadio1940

Someone looking for an inexpensive radio 75 years ago could head to Walgreen’s, where this 4-tube model could be had for $7.95. It’s shown here in the Milwaukee Journal for March 28, 1940, where it’s billed as the “ideal ‘extra’ radio for your home.”

This set had the Aetna brand name, which was Walgreen’s house brand for radios. The actual manufacturing was done by various radio manufacturers, most of which were in the Chicago area. This radio would probably remain in service for the duration of World War 2. After the U.S. entered the war the next year, the War Production Board ended the production of civilian radio receivers, as of April 22, 1942. With no replacements available, the owners of sets, even as humble as this one, had incentive to keep them in operating condition.

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75 Years of HCJB Shortwave

HCJB grounds.  Wikipedia photo. by Mschaa - Own work. Licensed under GFDL via Wikimedia Commons

HCJB grounds. Wikipedia photo. by Mschaa – Own work. Licensed under GFDL via Wikimedia Commons.

In the early 1940’s, the physics department of the University of Chicago was undoubtedly an exciting place. In late 1942, the world’s first self-sustaining nuclear reaction took place under the stands of the football stadium under the direction of Columbia Unviersity Professor Enrico Fermi.

On Easter Sunday 1940, the atomic pile had not yet been built, but the University was clearly about to be at the center of some of the greatest science of our time.  But one graduate student was about to hear a different call, and it came over the shortwave radio.

On Easter Sunday, 1940, a new radio station had just come on the air and was conducting its inaugural broadcast with a new 10 KW shortwave transmitter.  The station wasn’t entirely new, but it had just installed the new transmitter, and it now had a strong signal to North America.  That station was HCJB, the Voice of the Andes, in Quito, Ecuador.

The station had been founded in 1931 by American missionary Clarence W. Jones.  Jones had worked under Chicago evangelist Paul Rader, who had been one of the first radio evangelists, having a weekly program called “WJBT” (Where Jesus Blesses Thousands), which was carried by WBBM in Chicago.  Jones had been impressed by the radio’s ability to spread the Gospel, and felt called to establish a radio ministry in Latin America.  In 1928, he traveled to Venezuela, Colombia, Panama and Cuba, seeking a location for the station, but was unable to receive government permits in any of those countries.

Later, Christian and Missionary Alliance missionaries to Ecuador encouraged him to start the radio station there.  In 1930, Jones obtained the approval of the Ecuadorian government to begin a station,

HCJB came on the air on Christmas Day, 1931.  The initial 30-minute broadcast in English and Spanish was from a fairly respectable 200 watt transmitter.  But that transmitter was sitting on a table in Jones’ living room, with a simple wire antenna strung between two poles.  And there were only six receivers in the country at the time.

Notwithstanding its small start, the station continued to grow.  And by 1940, it was able to install the substantial 10 KW shortwave transmitter that would provide good coverage in both South and North America.  By 1941, broadcasts were expanded to include Russian, Swedish and Quichua.  Other languages soon followed.

The inauguration of the new shortwave transmitter was noted in North America.  The shortwave bands reflected the fact that Europe was now at war, and the message of peace transmitted from Ecuador was a breath of fresh air.  The shortwave editor of Radio Guide magazine made these observations in the April 20, 1940, issue:

            “The Voice of the Andes”

To those listeners tired of the eternal babble of Europe’s shortwave voices of hate and war: Turn your dials to HCJB (12.48), “The Voice of the Andes,” at Quito, Ecuador. Here, at an elevation of 10,000 feet, encircled by eleven snow-capped peaks of the mighty Andes, nestles the oldest city of the New World, one of the ancient capitals of the Incas steeped in fifteen hundred years of traditions; a city whose many white churches shelter staggering treasures in gold and precious stones; a city with winding cobbled streets, overhanging balconies, ancient archways, sunlit plazas and countless white-stone houses perched crazily on steep hillsides, their red-tile roofs, with green moss cropping out here and there in the cracks, forming vivid splotches of color against the snowy mantle of the guardian peaks.

Such a historic and picturesque setting seems indeed a fitting site for a missionary radio station whose messages are those of peace and good-will. This new 10,000-watt modern short-wave transmitter–the most powerful in South America and the only broadcast station to employ a fully rotatable antenna–stands as a tribute to the sacrificing labors of one many–Clarence Jones, a gospel missionary from Chicago, whose lifework is to minister to and teach the Andean Indians. Because of the rugged contours of Ecuador, making transportation exceedingly difficult, Reverend Jones recognized long ago the vital value of radio in carrying on his work and subsequently installed several small short-wave stations at Quito, including the former 1,000-watt transmitter of HCJB and a mobile broadcasting station which carries this active pastor’s voice to the most remote jungle and mountain tribes. The new station–a labor of love paid for by voluntary subscriptions from his loyal friends–was built by an American amateur, Clarence Moore, who is well known to hundreds of amateur friends under his call, HC1JB. The new “Voice of the Andes” was officially inaugurated on Sunday, March 24.

On the dial, HCJB (12.46) comes in above the 25-meter band and approximately half-way between the 12 and 13 megacycles figures in frequency. You will have no trouble in hearing HCJB, since its unique location and rotatable aerial make it possible for it to project strong signals into North America.

HCJB is on the air for several hours daily with Spanish programs for the benefit of listeners in the Latin Americas, but English listeners will be primarily interested in “Ecuadorian Echoes,” on from 6:00 to 7:00 p.m., and the “Friendship Hour,” broadcast nightly except Mondays from 9:00 to 10:00 p.m. EST. These all-English programs are directed specifically to North America. “Ecuadorean Echoes,” one of the most interesting programs on the air, breathes the very soul of Latin America. During this period the native music, the literature and the very lives and habits of these romantic peoples come to life and parade before the microphone. “The Friendship Hour” is a strictly good-will program consisting of classical music, old-time hymns, simple gosple messages, the reading of letters from listeners and personal messages to friends everywhere.

Among the listeners to that first program on Easter Sunday 75 years ago was University of Chicago graduate student Clayton Howard. He had received his undergraduate degree in physics the previous year from nearby Wheaton College.  He had been born in China to missionary parents who returned to the United States when Clayton was 9, in order for Clayton’s father, Charles Howard, to organize the biology department at Wheaton.

By this time, Clayton was a licensed amateur radio operator.  In the 1938 call book, he is listed as holding call sign W9KJZ.  For whatever reason, he happened to be tuning above the 25 meter band that night and heard the new station.  He later recounted that he was aware of a missionary station in South America, but knew little about it before chancing upon its broadcast that night.  He was intrigued enough to seek out Reuben Larson, one of the missionaries to Ecuador who had a decade earlier encouraged Jones to start the station.

HCJB technical staff in 1945.  Head engineer Clayton Howard is in the center.   (Image by by SkagitRiverQueen, Licensed under CC BY-SA 3.0 via Wikipedia.)

HCJB technical staff in 1945. Head engineer Clayton Howard is in the center. (Image by by SkagitRiverQueen, Licensed under CC BY-SA 3.0 via Wikipedia.)

The name Clayton Howard is familiar to many hams and shortwave listeners.  1941 saw Howard be commissioned by his church as a missionary and accept a call to serve on the technical staff of HCJB.  Howard went on to become the station’s chief engineer, and is best known as being the on-air host of the “DX Partyline” program, which he produced and hosted for 22 years.  This program was very popular with SWL’s, as it included station reports and other listening tips.  The program always concluded with Howard offering a short segment entitled, “Tips for Real Living,” in which he shared with listeners a brief Gospel devotional message.

Clayton Howard and wife Helen hosting DX Party Line, 1970's.  Photo courtesy HCJB, used with permission.

Clayton Howard and wife Helen hosting DX Party Line, 1970’s. HCJB photo.

The Soviets didn’t normally provide recognition to Christian missionaries, but in Howard’s case, they made an exception.  When Howard retired in 1984 and made his last DX Partyline broadcast, Radio Moscow announced that “the living legend of the Andes has retired.”

If you grew up as I did listening to a shortwave radio in the 1960’s and 1970’s, the name Clayton Howard is certainly a familiar one.  And chances are, you heard one of those tips for real living.  If you did, it was probably because on Easter Sunday, 1940, a 12.48 megacycle radio signal traveled from the Andes to a receiver in Chicago.

As a result of that Radio Signal, Clayton Howard probably never met Enrico Fermi.  He probably had nothing to do with the construction of the atomic pile under the football stadium.  If he had, perhaps Howard would be remembered today as a nuclear physicist.  But God called him elsewhere, and it appears that He made that call on 12.48 megacycles.

References

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Crosley Radio, 1925

Crosley1925

Ninety years ago, here was what was available in radio. This ad from the Crosley Radio Corporation appeared in Popular Science, March 1925.

Crosley Radio was founded in 1921 by Ohio industrialist Powel Crosley, Jr. To encourage sales, he began broadcasting with a 20 watt transmitter from his home. In 1922, the company began operating WLW radio, originally with a 50 watt transmitter, which was increased to 50,000 watts over the next six years. Crosley realized that with a more powerful transmitter, he could sell cheaper radios, and the station operated for a time in the 1930’s with 500,000 watts.

The least expensive model in this ad was the Crosley 50, with a list price of $14.50. Not mentioned in the ad was the fact that this price didn’t include the tube and headphone, which would bring the price up to $22.25. The top of the line was the Trirdyn Special for $60, which would drive a loudspeaker (not included, of course) with even distant stations. It featured a solid mahogany cabinet.

Crosley Radio and WLW were sold in 1945 to AVCO, which used the brand name until 1956. The name was eventually purchased and is still in use by another company bearing the name Crosley Radio, which capitalizes on the vintage name.

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