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University Daily Kansan Wednesday, March 21, 1956.
—(Photographic Bureau photo)
6-FOOT HI-FI—Louis Breyfogle bends an ear toward the exponential opening to hear the voice of the bass fiddle from his "poor man's hi-fi." His design is one which won him the student technical paper competition of the American Institute of Electrical Engineers and Institute of Radio Engineers last year in Kansas City, Mo.
Original Comics On Display
Drawings for "Dick Tracy," "Blondie," and "Gasoline Alley" are among the originals now on display in the Journalism Historical Center in Flint Hall.
Fifty comic strip artists and editorial cartoonists are represented in the exhibit.
The Historical Center is sponsored by the William Allen White Foundation, and the comic strips on display are from the Albert T. Reid Cartoon Collection. The exhibit is open to the public from 8 a.m. to 5 p.m., Monday through Friday, and until noon on Saturday.
The Reid collection, which contains nearly 1,100 individual items by some 500 contributors, is a memorial to the late Albert T. Reid. He was a newspaper publisher in Kansas before going to New York City to become a cartoonist, illustrator and painter.
The editorial cartoons on display are by Rube Goldberg and Jim Berryman, who won the Pulitzer Prize in 1948 and 1950 respectively.
State Draft Quota For May Is 144
TOPEKA (UP)—A Kansas draft quota for May of 144 young men was announced today by Maj. Gen. Joe Nickell, state director of Selective Service.
Based on a national call for 12,000, the Kansas May figure will bring to 555 the number of men the state will have supplied the armed services this year.
Delta Chi Sends 2 To Conference
Representatives from Kansas a chapter of Delta Chi fraternity returned March 17 from the Midwest Regional Conference of Delta Chi fraternity at DePauw University, Green Castle, Ind. Jack Harrington, Terre Haute, Ind., and Robert Terrill, Kansas City, Kan., both sophomores, attended. Scholarship, rushing, chapter finances and pledge training were some of the topics discussed by more than 100 delegates from Midwestern chapters.
Plywood Coffin' Serves As Hi-Fi Amplifier
Louis Breyfogle, instructor in electrical engineering, has built a unique "poor man's hi-fi," at a cost of about $50 including a $35 speaker. He calls it a "coffin."
Mrs. Breyfogle calls the 6-foot plywood box "unsightly" and wishes her husband would do something to make it look better. But about the sound it produces, she's much more enthusiastic. Its tone quality is comparable to most higher-priced commercial high fidelity machines and better than some, she says. And her husband can prove it, on electronic machines which measure pitch and loudness.
Wife Helped Planning
Mrs. Breyfogle, an organist, who helped her husband out with advice and musical criticism while he was building his coffin, is the former Joan Johnson of Chanute.
What Mr. Breyfogle's coffin does is to expand the range of a speaker by reinforcing its bass output from the point where the speaker itself begins to lose its push. To do this it uses sound from the back of the speaker diaphragm.
The coffin's design is remarkably simple. Mr. Breyfogle calls it a "folded organ pipe." Stretched out, this pipe would be about 14 feet long, with a sounding box at one end containing the speaker and a three-cornered slot at the other.
"Expoential Opening"
The heart of the coffin is the three-cornered slot. It determines the pitch and intensity of the sounds let out of the box. Mr. Breyfogle calls it an "exponential opening" because an exponential graph is plotted to determine just how much the sides should be bent.
The rest of the box is three-fourths inch plywood panels but together with caulking compound and more than a gross of wood screws. Partitions inside the box divide it to make the 14 feet of "pipe" and the square sounding chamber for the speaker.
Heavy wood is necessary, Mr. Breyfogle explains, because pressures created by the sound waves will distort a lighter material, producing resonance. The large number of screws, one every six inches or less, is used for the same reason. Caulking is to stop air leaks.
He believes his coffin will improve the efficiency of almost any speaker, Tests have shown efficiency increases on his present unit to reach as much as twice the speaker output in the low pitch ranges which the box is designed to amplify.
He plans to build another one which he thinks will be better. With the two he plans to make some comparative tests.
Librarian Attending Meeting
Hazel Anderson, law librarian, is attending a meeting of the national bylaws committee of the National Federation of Business and Professional Women today through Saturday in Chicago. The committee is working to standardize bylaws of state and local groups of the organization. Miss Anderson is national B.P.W. legal adviser.
shop at
For All Your Gifts
UNDERWOOD'S
1215 West Sixth Street
- Glass Sets
- Easter Purses
- Milk Glass
- Bar Sets
Rock Chalk Revue Tickets On Sale
Tickets for the Rock Chalk Revue are being sold at the ticket booth in the Student Union and at the information booth. The Revue will be held at 8 p.m. Friday and Saturday in Hoch Auditorium.
The eight skits in the show have been cut to 12 minutes each, producer Walter Muller. Winter Park, Fla., senior, said today.
Ehrsam Award To Freshman
Walter Eugene Palmer, Garden City freshman in the School of Engineering and Architecture has been awarded the J. B. Ehrsam and Sons Manufacturing Co. scholarship for the second semester.
The $750 a year annual scholarship is renewable for four years if the scholar maintains at least a "B" average.
Palmer's current grade average is 2.2. He also has a scholarship in a residence hall.
The Ehrsam scholarship is awarded each year, beginning with the 1955-56 school year, to a freshman in the School of Engineering and Architecture at KU. Awarding is based on the candidates' high school records, evaluations of character, social and leadership qualities, and financial need.
Farm families buy 10 per cent of the new cars sold and six per cent of the used ones.