Lee De Forest

Home > ... > Science and Technology > Computers and Electrical Engineering > Electrical Engineering: Biographies > ...

Lee De Forest

The Columbia Encyclopedia, Sixth Edition | 2008 | The Columbia Encyclopedia, Sixth Edition. Copyright 2008 Columbia University Press. (Hide copyright information) Copyright

Lee De Forest 1873-1961, American inventor, b. Council Bluffs, Iowa, grad. Yale, 1896. He was a pioneer in the development of wireless telegraphy, sound pictures, and television. His triode (1906) made practicable transcontinental telephony, both wire and wireless, and led to the foundation of the radio industry. He is frequently called "the father of radio." The first high-powered naval radio stations were designed and installed by him.

Bibliography: See his autobiography (1950); biography by I. E. Levine (1964).

Hide all research tools
Print this article Print all entries for this topic Cite this article Link to this article
Link to this article

CloseClose

Create a link to this page

Copy and paste this link tag into your Web page or blog:

<a href="http://www.encyclopedia.com/topic/.aspx#1E1-DeForestL" title="Facts and information about Lee De Forest">Lee De Forest</a>

Add this article to Del.icio.usBookmark this article on DiigoShare this article on FacebookSubmit this article to RedditGive this article a thumbs-up on StumbleUpon
Show all research tools

Cite this article
Pick a style below, and copy the text for your bibliography.

  • MLA
  • Chicago
  • APA

"Lee De Forest." The Columbia Encyclopedia, Sixth Edition. 2008. Encyclopedia.com. 8 Dec. 2009 <http://www.encyclopedia.com>.

"Lee De Forest." The Columbia Encyclopedia, Sixth Edition. 2008. Encyclopedia.com. (December 8, 2009). http://www.encyclopedia.com/doc/1E1-DeForestL.html

"Lee De Forest." The Columbia Encyclopedia, Sixth Edition. 2008. Retrieved December 08, 2009 from Encyclopedia.com: http://www.encyclopedia.com/doc/1E1-DeForestL.html

Learn more about citation styles

De Forest, Lee

World Encyclopedia | 2005 | © World Encyclopedia 2005, originally published by Oxford University Press 2005. (Hide copyright information) Copyright

De Forest, Lee (1873–1961) US inventor of the audion triode valve (1907), an important electronic invention. It could amplify signals, and had many applications. Valves became essential in radio, television, radar, and computer systems. The transistor largely replaced valves. See also thermionics

Hide all research tools
Print this article Print all entries for this topic Cite this article Link to this article
Link to this article

CloseClose

Create a link to this page

Copy and paste this link tag into your Web page or blog:

<a href="http://www.encyclopedia.com/topic/.aspx#1O142-DeForestLee" title="Facts and information about Lee De Forest">Lee De Forest</a>

Add this article to Del.icio.usBookmark this article on DiigoShare this article on FacebookSubmit this article to RedditGive this article a thumbs-up on StumbleUpon
Show all research tools

Cite this article
Pick a style below, and copy the text for your bibliography.

  • MLA
  • Chicago
  • APA

"De Forest, Lee." World Encyclopedia. 2005. Encyclopedia.com. 8 Dec. 2009 <http://www.encyclopedia.com>.

"De Forest, Lee." World Encyclopedia. 2005. Encyclopedia.com. (December 8, 2009). http://www.encyclopedia.com/doc/1O142-DeForestLee.html

"De Forest, Lee." World Encyclopedia. 2005. Retrieved December 08, 2009 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O142-DeForestLee.html

Learn more about citation styles

Facts and information from other sites

Related topics

  Edit this list

Related articles from newspapers, magazines, and more

Turning over a new leaf; ProjectScotland Volunteer Lee Forest reflects on his achievements during his stint with the Forestry Commission.(Features)
Newspaper article from: Daily Record (Glasgow, Scotland); 10/5/2006; 700+ words ; ...my time in the South Ayrshire forest will soon be over! I would...creating paths and keeping the forest in shape, it's a better place...like to get involved just like Lee, then visit www.projectscotland...TREE-MENDOUS TIME: Volunteer Lee Forest has learned many new...
project Scotland: My job's just tree-mendous; Over the next year, Young Scot will be publishing a series of diary articles from Lee Forest, 21, a young ProjectScotland volunteer. The organisation was set up to connect young people between 16 and 25 with a variety of volunteering opportunities. Lee is volunteering with the Forestry Commission. This is his first entry.(Features)
Newspaper article from: Daily Record (Glasgow, Scotland); 4/6/2006; 700+ words ; ...re working in the Galloway Forest in South Ayrshire, one of the largest forests in Scotland. I don't live far from the forest, but embarrassingly I'd...placement is all about making the forest more accessible and appealing...S): GETTING IT TOGETHER: Lee is just one of 25 young volunteers...
Golf: Lee eyes Forests' success.(Sport)
Newspaper article from: Sunday Mercury (Birmingham, England); 3/21/2004; 574 words ; Byline: LEE McLAUGHLAN THERE is only one...and it certainly isn't Lee. That honour belongs to his...watch his beloved Nottingham Forest -despite their battling to...British Masters at the Marriott Forest of Arden from May 6-9, has...
COMEDY CUTS No 6: JASON LEE N Forest,1995.(Sport)
Newspaper article from: Daily Post (Liverpool, England); 4/12/2004; 327 words ; ...during the mid- 90s. The mickey-taking got to our Lee so much he shaved all his hair off,but the famous cut did inspire these moving lines of poetry from a Forest fan:O Jason Lee come back to me I miss your smiling face. You've...
The specials are a delight at Steve Lee's in Forest Park
Newspaper article from: Chicago Sun-Times; 4/1/1988; ; 537 words ; STEVE LEE'S Cuisine: Chinese. Address: 7501 W. Roosevelt Rd., Forest Park. Phone: 771-2667. Hours...worst part of going to Steve Lee's in Forest Park is walking...shrimp kow ($7.75), Steve Lee's offers a variety of specials...
Lee Doney Appointed BC Forest Safety Council Co-Chair
Newspaper article from: CCNMatthews Newswire; 1/25/2006; 482 words ; ...CCNMatthews - Jan. 25, 2006) - Lee Doney has been appointed co...guide the activities of the BC Forest Safety Council which is funded...industry as a partnership of forest companies, manufacturers and...fatalities and injuries in BC's forest industry by creating a safe...Act. As deputy minister of ...
Proudlock proof of Lee legacy; Nottingham Forest 0 Wolves 1.(Football)
Newspaper article from: The Birmingham Post (England); 1/8/2001; 700+ words ; ...Scott at the City Ground Colin Lee had sadly left his seat in the...assignment, listening on his radio, Lee would surely have got just as...office at Molineux, Dave Jones. Lee - sat slap bang in front of Wolves...made the shot that cut down the Forest so special, though, was the...
Football: Agony as Lee boys suffer; FOREST . . .3 WALSALL .3.(Sports)
Newspaper article from: Sports Argus (Birmingham, England); 2/14/2004; 700+ words ; ...last-minute equaliser for Forest. A thrilling first half saw...in midfield while manager Lee opted for three up-front. Former Saddler Sonner was in a Forest side in their first game under...remarkably so considering Forest hadn't won in 14 games, and...
Lee fans the Forest flames at Turnberry; OPEN DIARY.
Newspaper article from: Liverpool Echo (Liverpool, England); 7/14/2009; 541 words ; LEE WESTWOOD may be an avid Nottingham Forest fan but the exploits of the Coca...Championship, one of the children asked Lee what he would have wanted to be had...s top stars. But despite having Lee Westwood, Ernie Els and Rory McIlroy...
LOB-ER-LEE; Chelsea 1 Nottm Forest 1.(Sport)
Newspaper article from: The People (London, England); 9/29/1996; ; 600 words ; ...week of woe got no better when Forest grabbed a last minute equaliser...it seemed it was the turn of Forest's boss Frank Clark to hit...arms in triumph when substitute Lee hit that late goal. It came...goalkeeper Crossley that reached Lee by Pearce. He was left all...

Pictures from Google Image Search

Click to see an enlarged picture
Click to see an enlarged picture
Click to see an enlarged picture

For students and teachers!

Encyclopedia.com provides students and teachers facts, information, and biographies from verified, citable sources, including:

Encyclopedia.com provides students and teachers facts, information, and biographies from verified, citable sources, including:

Popular on Newser:

Woods' Mistress Tally: 7 & Counting

(12/7/2009 12:42:00 PM)

Elin Moves Out on Tiger

(12/8/2009 12:57:00 AM)

Tiger to Galpal: My Marriage Is a Sham

(12/7/2009 2:21:00 PM)

Another Alleged Mistress: Tiger Liked It Rough

(12/6/2009 10:48:03 PM)

LiLo in Threesome —Photo Shoot

(12/7/2009 4:56:00 PM)