
Edison patented telephone Carbon button transmitter (1892)
In 1876, Alexander Graham Bell invented the telephone, but it had a major problem: it was very difficult to hear the other person on the other end of the line. This was because the early telephones used a very weak electrical current to transmit sound.
Thomas Edison, a brilliant inventor, was determined to improve the telephone. He knew that he needed to find a way to amplify the electrical current so that the sound would be louder and clearer.
After years of experimentation, Edison finally came up with a solution. He invented a new type of telephone transmitter that used a small piece of carbon. When sound waves hit the carbon, it vibrated and changed the electrical current. This amplified the sound, making it much easier to hear.
Edisons carbon button transmitter was a major breakthrough in telephone technology. It made telephones much more practical and useful, and it helped to spread the use of telephones around the world.
Edisons carbon button transmitter was patented in 1892, and it is still used in some telephones today. It is a testament to Edisons ingenuity and his commitment to improving the world around him.