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	Lee De Forest - Wikipedia, the free encyclopedia
		Lee De Forest patented a three-electrode version of the Audion.
		Lee De Forest was born in Iowa to a Congregational minister who hoped that his son would become a minister like himself.
		Lee De Forest sold one of his business interests to David Sarnoff's RCA (owner of the assets of American Marconi).
	en.wikipedia.org /wiki/Lee_DeForest (1140 words)

	Invent Now \| Hall of Fame \| Search \| Inventor Profile
		DeForest found a clue to creating the long-sought detector of electromagnetic radiation in John A. Fleming's invention of the so-called electronic valve.
		The most serious drawback of the Fleming valve was that it was relatively insensitive to changes in the intensity of incident electromagnetic radiation.
		DeForest's simple but revolutionary answer was to insert a third electrode between the cathode and the anode.
	www.invent.org /hall_of_fame/40.html (224 words)

	DesMoinesRegister.com \| Famous Iowans
		DeForest is best remembered for his 1906 invention of the three-element electronic tube, which made modern radio, radar and television possible.
		DeForest was sent to prep school in Northfield, Mass., and Yale's Sheffield Scientific School, from which he graduated in 1896.
		Lee DeForest, born in Council Bluffs, Ia., displays a replica of the first three-element vacuum he invented in 1906.
	desmoinesregister.com /extras/iowans/deforest.html (316 words)

	Stephen Greene's essay on Lee deForest
		Lee de Forest did—many times—when he spoke in public or wrote in private.
		Lee de Forest was perfect: a silver-haired, silver-tongued radio pioneer who was eager to talk.
		Lee de Forest became the “Father of Radio” because he spent five decades campaigning for the title before a press which was all too willing to grant him the honor.
	www.geocities.com /lyon95065/Radio.html (6410 words)

	Lee DeForest
		Lee DeForest, (August 26, 1873 - June 30, 1961), was an American inventor in 1906 or 1907 of the triode, then called by him the audion.
		What Lee DeForest did was to insert a third electrode, the grid or gate, in between the cathode (filament[?] or connected to the filament) and the anode (plate[?]) of the already invented diode.
		The resulting triode or three-electrode vacuum tube could be used as an amplifier for audio signals.
	www.ebroadcast.com.au /lookup/encyclopedia/le/Lee_DeForest.html (143 words)

	about
		Lee Deforest was born in 1873, and passed away in 1961.
		Although he is well known for the triode vacuum tube, which he named the "Audion" for its ability to amplify tiny signals, Dr. Deforest was very involved with many of the aspects of communications of his day, including the telegraph, detectors and even spark gap equipment.
		Lee Deforest also had a large number of patents received for his many other inventions related to radio, telegraph and similar applications.
	www.homestead.com /leedeforest/about.html (527 words)

	Lee De Forest - Wikipedia, the free encyclopedia (Site not responding. Last check: 2007-10-06)
		Lee De Forest, (August 26, 1873 - June 30, 1961), was an American inventor with over 300 patents to his name.
		Lee De Forest's father accepted the position of President of (a Black school) in Alabama, where Lee spent most of his young life.
		Even today, when looking in the Encylopedia Britanica, Lee De Forest is named the inventor of sound on film.
	www.northmiami.us /project/wikipedia/index.php/Lee_DeForest (1064 words)

	ETF - DeForest Mechanical Color System
		DeForest is, of course, the man who put the control grid into the vacuum tube in 1905, thus creating the first signal amplifying device.
		However, one look at the hardware and it appeared to me that the optical inefficiency of DeForest's ingenious mechanical color-wheel substitute had to be such as to doom this approach.
		It would be interesting to know whether it was ever publicly demonstrated and whether of the unit that I saw in the lab that day in 1949 had survived and found a home in some collection or museum.
	www.earlytelevision.org /deforest_color.html (782 words)

	Lee DeForest (Site not responding. Last check: 2007-10-06)
		Lee DeForest will begin his first season with the Central Florida Community College basketball program as assistant coach.
		DeForest joins the Patriot staff after spending 1 year at Bellarmine University, a Division II school competing in the nationally respected Great Lakes Valley Conference, with Head Coach Chris Pullem.
		DeForest, 26, a native of Albany, KY, graduated from Clinton County High School in 1996 and then went on to play for one year at Lindsey Wilson College before an injury led him to transfer to EKU.
	www.cf.edu /student/athletics/mensbb/lee_deforest.htm (182 words)

	Radio Hall of Fame - Dr. Lee DeForest, Pioneer
		As a student at Yale University, Dr. deForest’s Ph.D. dissertation on high-frequency oscillation effects in parallel wires was one of the first treatises on radio waves and the possibilities of wireless communication.
		By the end of the first decade of the 20th century, deForest had broadcast from the Eiffel Tower and from the stage of New York’s Metropolitan Opera House.
		Lee deForest was inducted into the Radio Hall of Fame in 1989.
	www.radiohof.org /pioneer/leedeforest.html (200 words)

	971203
		The idea of broadcasting was first considered by Lee deForest in May, 1902, when he wrote that "Ultimately, wireless telephony will be possible." He urged the financial backers of the deForest Wireless Telegraph Company to develop and patent the concept.
		Not to be outdone, deForest continued his radio telephone experiments in the period 1907-1910, broadcasting from the Eiffel Tower and live from the stage of the Metropolitan Opera, where Enrico Caruso was singing.
		Lee deForest resumed his transmissions, with programs of "good music, culture, and lectures." deForest can be credited with two "firsts" in 1916; the first advertisements (for his Audion and other products), and the broadcast of the Presidential election between Woodrow Wilson and Charles Evans Hughes.
	www.n2ty.org /newsletter/971203.htm (1546 words)

	[No title] (Site not responding. Last check: 2007-10-06)
		Lee deForest was one of the most influential people in the development of radio and television broadcasting.
		At a young age, Lee seemed to have a great interest in inventions, looking at the various patents in the Patent Gazette and being amazed with them.
		It was this kind of curiosity that propelled deForest in his efforts to become a successful inventor himself.
	www.oswego.edu /~messere/brc200young.html (412 words)

	The Louisiana Purchase Exposition (Site not responding. Last check: 2007-10-06)
		Just to make sure that people saw all these experiments (and the DeForest name), the operators were told that whenever crowds started to thin around the tower, they were to emit as loud a spark as possible, audible a quarter mile away.
		The 300 foot tower DeForest built was the largest structure in St. Louis and the zenith of his career.
		Altough DeForest had a beautiful 3-bedroom house near the fair, cpomlete with cook and servants, he had a cot brought to the top of the tower.
	park.org /Pavilions/WorldExpositions/st_louis.html (439 words)

	Lee de Forest in Hollywood
		One of Lee's most important inventions was the first sound-on-film process in 1920.
		Lee de Forest lived in Hollywood and worked on a variety of non-radio technical devices, most notable his Phonofilm process, a way to make the movies talk by adding a synchronized optical soundtrack to the film.
		At the right, President Calvin Coolidge speaks on film, the small strip between the sprocket holes and picture is the de Forest sound on film.
	www.leedeforest.org /hollywood.html (286 words)

	Lee Deforest accomplishments and failures towards communicat free essays
		These questions are characteristic of the life a man by the name of Lee DeForest also known as “the father of American radio,” had led.
		DeForest, born in Council Bluffs, Iowa in 1873, grew up to become an ambitious young man. He was known “as a boy that didn't want to become a Congregational minister like his father,” he had different plans(Longden,2003).
		Lee started inventing things such as a puzzle game and then from there he improved the type bar on his typewriter.
	www.needfreeessays.com /viewpaper/814.html (294 words)

	O'Connor Piano, MIDI Keyboard and Organ Studio
		Lee DeForest was born in 1873 in Council Bluffs, Iowa.
		Wireless radio broadcasting was unthinkable in the early 1900s and DeForest was considered a fraud.
		Lee DeForest’s 1950 autobiography is called "Father of Radio".
	www.oconnormusic.org /composers-d.htm (2067 words)

	Lee DeForest of the SMART Daaf Boys - Innovators of Wireless Radio Waves
		DeForest was the son of a Congregational minister who was later to become president of Talladega College in Alabama.
		Not only did DeForest devise radio's most impor tant invention, he was also a fascinat ing man. He was born, in the parsonage of the Congregational Church in Council Bluffs.
		But as fate would have it, DeForest really didn't understand what he had devised, and what was equally costly to an inventor, he did not know how to use his device properly.
	smart90.com /deforest (864 words)

	News and Music to be Transmitted by Wireless Telephone (1916) (Site not responding. Last check: 2007-10-06)
		The key difference between the Highbridge station success and the earlier failures was that the earlier attempts had tried to use arc transmitters, while the Highbridge station made use of the newly developed vacuum-tube transmitter.
		Lee DeForest, at the DeForest Radio Experimental Laboratories at Highbridge, N. Y., after a series of experiments in wireless telephony covering the greater part of nine years.
		At the receiving end the music, or spoken word, is heard by means of the regular wireless ear-pieces, which resemble those used by the girl operators at the public telephone stations.
	earlyradiohistory.us /1916dfny.htm (466 words)

	Lee DeForest Encyclopedia Article, Definition, History, Biography (Site not responding. Last check: 2007-10-06)
		Looking For lee deforest - Find lee deforest and more at Lycos Search.
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	www.karr.net /encyclopedia/Lee_DeForest (1268 words)

	linkfilter.net - fresh links daily (Site not responding. Last check: 2007-10-06)
		From an early age, Deforest was determined to be successful at any cost, and his dream was to amass a large fortune.
		Lee lost several as well; all due to poor business sense, unwise choices for partners, and impressive legal fees accrued from defending himself from patent infringement and suing others.
		When Lee died in 1961, he only had $1,250 in his bank account.
	linkfilter.net /?id=78117 (279 words)

	Encyclopedia: Lee DeForest
		But it has been proved over and over again that he stole those ideas from an old friend.
		National Inventors Hall of Fame's Lee De Forest (http://www.invent.org/hall_of_fame/40.html)
		Click for other authoritative sources for this topic (summarised at Factbites.com).
	www.nationmaster.com /encyclopedia/Lee-DeForest (1006 words)

	Making Wireless History With De Forest
		Lee DeForest, the company's Scientific Director, was responsible for the company's reputation for crude engineering--the fact that his chief assistant at the Saint Louis Fair had "no more electrical knowledge than that possessed by the average telegraph operator" speaks volumes about the sophistication of the equipment design.
		His use here of Fessenden's electrolytic detector would be later be repeated, and numerous lawsuits by Fessenden eventually led to DeForest having to hide in Canada for awhile, to avoid the law.
		But DeForest was also a loyal and tenacious battler, who kept charging forward the best he could.
	earlyradiohistory.us /makehist.htm (3681 words)

	K7CTW Amateur Radio History in the U.S. - Part IV (Site not responding. Last check: 2007-10-06)
		And Lee deForest, with his invention of the Audion and some other subsequent work, was important.
		It is interesting to note that, even though deForest had invented the audion (the first and only authentic invention of his), deForest was never able to satisfactorily explain how an audion operated.
		A year later, deForest filed for a patent on the same invention, which he sold, together with all rights to his audion, to AT&T. With the coming of the broadcast boom, AT&T mounted an all-out campaign to overturn Armstrong's patents in favor of deForest's.
	www.k7ctw.com /arhist4.html (1936 words)

	Inventor of the Week: Archive
		Lee De Forest invented the device that made wireless radio broadcasting practicable: the "triode" or "audion" amplifier.
		His audion tube became an essential component of not only commercial radio, but the telephone, television, radar, and computer.
		Although solid-state transistors replaced the bulky audion tubes originally used in these devices long ago, Lee De Forest's inventions and enthusiasm paved the way for the electronic age.
	web.mit.edu /invent/iow/deforest.html (335 words)

	Lee De Forest and the Birth of the Global Village (Site not responding. Last check: 2007-10-06)
		Lee De Forest and the Birth of the Global Village
		Here, radio pioneer Lee De Forest, working for the Federal Telephone Company, coaxed the Audion (triode) vacuum tube that he had invented earlier to amplify electrical signals, and electronics was born.
		The building blocks of our Silicon-Information Age -- oscillators for generating radio, TV, and computer signals; the amplifiers and electronic switches that make them useful -- are variations of the amplifier Dr. De Forest invented at 913 Emerson, Palo Alto, California.
	www.homeravenue.com /Lee_deForest.htm (239 words)

	Lee De Forest
		Lee De Forest invented the audion, a vacuum tube device that could take a weak electrical signal and amplify it into a larger one.
		The audion helped ATandT set up coast-to-coast phone service, and it was also used in everything from radios to televisions to the first computers.
		No portion of this web site may be reproduced without written permission.
	www.pbs.org /transistor/album1/addlbios/deforest.html (396 words)

	X-rays, 'fax machines' and ice cream cones debut at 1904 World's Fair
		The fair, also known as the Louisiana Purchase Exposition (because it marked the 100th anniversary of Thomas Jefferson's great acquisition), unveiled to the world new ideas, products and scientific advances that enthralled thousands of visitors.
		• Wireless telegraphy came into its own in an exhibit of the DeForest Wireless Telegraphy Company, which sent daily news of the fair to the St. Louis Post-Dispatch and the St. Louis Star via its observation tower and seven stations on the fairgrounds.
		Also featured in the DeForest exhibit was a wireless telephone, precursor of the now-ubiquitous cellular telephone.
	news-info.wustl.edu /tips/page/normal/812.html (1091 words)

	:: LEE DEFOREST :: (Site not responding. Last check: 2007-10-06)
		The prolific American inventor Lee De Forest is one of several pioneers of radio development.
		De Forest experimented with receiving long-distance radio signals and in 1907 patented an electronic device named the audion.
		De Forest's new three-electrode (triode) vacuum tube boosted radio waves as they were received and made possible what was then called "wireless telephony," which allowed the human voice, music, or any broadcast signal to be heard loud and clear.
	a.parsons.edu /~sachiko/hCw/002/lee_deforest.html (97 words)

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