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  2. Telharmonium - Wikipedia

    en.wikipedia.org/wiki/Telharmonium

    Telharmonium console by Thaddeus Cahill 1897. The Telharmonium (also known as the Dynamophone [1]) was an early electrical organ, developed by Thaddeus Cahill c. 1896 and patented in 1897. [2] [3] [4] The electrical signal from the Telharmonium was transmitted over wires; it was heard on the receiving end by means of "horn" speakers. [5]

  3. History of the battery - Wikipedia

    en.wikipedia.org/wiki/History_of_the_battery

    However, customers found his first model of the alkaline nickel–iron battery to be prone to leakage leading to short battery life, and it did not outperform the lead-acid cell by much either. Although Edison was able to produce a more reliable and powerful model seven years later, by this time the inexpensive and reliable Model T Ford had ...

  4. Thaddeus Cahill - Wikipedia

    en.wikipedia.org/wiki/Thaddeus_Cahill

    Thaddeus Cahill (June 18, 1867 – April 12, 1934) was a prominent american inventor of the early 20th century. He is widely credited with the invention of the first electromechanical musical instrument, which he dubbed the telharmonium.

  5. Electric organ - Wikipedia

    en.wikipedia.org/wiki/Electric_organ

    Cahill's techniques were later used by Laurens Hammond in his organ design, and the 200-ton Telharmonium served as the world's first demonstration of electrically produced music on a grand scale. Meanwhile, some further experimentation with producing sound by electric impulses was taking place, especially in France. [citation needed]

  6. History of radio - Wikipedia

    en.wikipedia.org/wiki/History_of_radio

    The early history of radio is the history of ... In February 1907 he transmitted electronic telharmonium music from his ... the first completely battery free ...

  7. The Thing (listening device) - Wikipedia

    en.wikipedia.org/wiki/The_Thing_(listening_device)

    The Thing was designed by Soviet Russian inventor Leon Theremin, [7] best known for his invention of the theremin, an electronic musical instrument.In Russian, the device is called Эндовибра́тор (endovibrator).

  8. Baghdad Battery - Wikipedia

    en.wikipedia.org/wiki/Baghdad_Battery

    The Baghdad Battery is the name given to a set of three artifacts which were found together: a ceramic pot, a tube of copper, and a rod of iron. It was discovered in present-day Khujut Rabu , Iraq in 1936, close to the ancient city of Ctesiphon , the capital of the Parthian (150 BC – 223 AD) and Sasanian (224–650 AD) empires, and it is ...

  9. Timeline of music technology - Wikipedia

    en.wikipedia.org/wiki/Timeline_of_music_technology

    1983 : Yamaha releases DX7, the first commercially successful digital synthesizer [41] The Yamaha DX7 goes on to become one of the best-selling synthesizers in history, selling more than 200,000 units. 1983 : Roland releases MSQ-700, their first MIDI sequencer [42] 1985 : Akai releases the Akai S612, a digital sampler