[DOC] [TLE] Thomas Edison - Wikipedia [PAR] Thomas Alva Edison (February 11, 1847  October 18, 1931) was an American 
inventor and businessman. He developed many devices that greatly influenced 
life around the world, ..... In 187778, Edison invented and developed the carbon 
microphone used in all telephones along with the Bell receiver until the 1980s. [DOC] [TLE] Carbon microphone - Wikipedia [PAR] The carbon microphone, also known as carbon button microphone, button 
microphone, ... Hughes' device used loosely packed carbon granules - the 
varying pressure exerted on the granules by the ... The use of carbon in a 
transmitter is, beyond controversy, the invention of Edison" and the Berliner 
patent was ruled invalid. [DOC] [TLE] THOMAS EDISON'S INVENTIONS [PAR] Radically improved stock tickers and patented several associated inventions, 
among which were the Universal Stock Ticker and the Unison Device. ... 1876-
1877 Invented the carbon telephone transmitter "button", which finally made... [DOC] [TLE] Thomas Alva Edison | American inventor | Britannica.com [PAR] Oct 14, 2016 ... Edison invented many items, including the carbon transmitter, in response .... 
improved version of Edison's original devicewhich used waxed... [DOC] [TLE] Telephone Transmitter - The Edison Papers [PAR] When Edison began working on the telephone in 1876 he focused on the weak 
point in ... In 1885, Edison developed an improved carbon transmitter for the Bell
... [DOC] [TLE] Telephone History Inventors [PAR] The telephone was one of many electrical devices developed in the late 1800's. 
Many people's ideas and inventions were used in creating a true telephone, like 
.... 1876. Thomas Edison (1847-1931) worked on improving Bell's telephone and 
filed for a patent of his carbon-transmitter telephone in Britain in 1877. His work... [DOC] [TLE] Thomas Edison - Inventions - HISTORY.com [PAR] Thomas Edison's most famous invention, the lightbulb, paved the way for ... In 
1877, Edison developed the carbon transmitter, a device that improved the... [DOC] [TLE] Thomas Edison - Telephone [PAR] Edison already knew a bit about sound waves, when in 1876, a man named 
Alexander Graham Bell applied for a patent for a device that would turn ... There 
were quite a few ways that Edison thought the telephone could be improved. ... 
was the 'Carbon Button Transmitter', which is still used to this day in modern form. [DOC] [TLE] Telephone Patents and Inventions [PAR] The telephone was invented by Alexander Graham Bell in 1876 (Us patent No. ... 
There is no mention of coils of wire or any magnetic device. ... Improvement of 
Transmitters and Receivers for Electric Telegraphs, 178/17B, Multiplexing ... 
Edison's carbon granules transmitter was used with improvements by the Bell 
system... [DOC] [TLE] Instrumentalizing Failure: Edison's Invention of the Carbon ... [PAR] Figure 1 shows the final form of Edison's carbon microphone (telephone 
transmitter). ... If Edison could invent alternatives to Bell's device, the resulting 
patents would .... of immersed electrodes to increase or decrease the resistance 
of the circuit'. ... The first of his sketches from July 1876 includes the transmitter in 
Figure 2... [DOC] [TLE] Lighting A Revolution: 19th Century Invention [PAR] Circumstances of the invention of Edison's electric lamps. ... But he continued to 
experiment with chemistry and began tinkering with electrical devices. ... that not 
only sold well but allowed him to establish an "invention factory" in 1876. ... to 
improve on Bell's newly invented telephone resulted in a carbon transmitter and... [DOC] [TLE] Thomas Edison, Chemist - American Chemical Society [PAR] Thomas Edison, Chemist National Historic Chemical Landmark commemorative 
booklet .... to the telephone (invented by Alexander Graham Bell in 1876), Edison 
set as his next ... the carbon transmitter (an improvement to the telephone 
microphone that Edison ... To his astonishment, the device worked on the first 
attempt. [DOC] [TLE] Thomas Alva Edison, Inventor (1847 - 1931) - Genealogy - Geni [PAR] Jul 5, 2016 ... Genealogy for Thomas Alva Edison, Inventor (1847 - 1931) family tree on Geni ... 
nicknamed "Dot"; Thomas Alva Edison, Jr. (18761935), nicknamed ...

Question: Edison's 1876 carbon transmitter was invented to improve this device
Answer: Telephone