![Phonograph invented in 1877 by Thomas Alva Edison (1847-1931). Engraving, 19th century. Colored Stock Photo - Alamy Phonograph invented in 1877 by Thomas Alva Edison (1847-1931). Engraving, 19th century. Colored Stock Photo - Alamy](https://c8.alamy.com/comp/RC4T1B/phonograph-invented-in-1877-by-thomas-alva-edison-1847-1931-engraving-19th-century-colored-RC4T1B.jpg)
Phonograph invented in 1877 by Thomas Alva Edison (1847-1931). Engraving, 19th century. Colored Stock Photo - Alamy
Rádio 7 - 4. března 1877 vynalezl tvůrce gramofonu Emil Berliner první mikrofon coby zařízení pro přeměnu akustického signálu na signál elektrický. Pro nás rozhlasové pracovníky (a doufáme, že nejen pro nás)
![Stage Right by Monoprice LC100 Large-diaphragm Cardioid Studio Condenser Microphone w/ Shock Mount - Monoprice.com Stage Right by Monoprice LC100 Large-diaphragm Cardioid Studio Condenser Microphone w/ Shock Mount - Monoprice.com](https://images.monoprice.com/productlargeimages/6258771.jpg)
Stage Right by Monoprice LC100 Large-diaphragm Cardioid Studio Condenser Microphone w/ Shock Mount - Monoprice.com
![Mikrofon w ręce człowieka fotografie, zdjęcia stockowe, Mikrofon w ręce człowieka obrazy royalty-free Mikrofon w ręce człowieka fotografie, zdjęcia stockowe, Mikrofon w ręce człowieka obrazy royalty-free](https://st2.depositphotos.com/1436971/8187/i/600/depositphotos_81877844-stock-photo-microphone-in-hand.jpg)
Mikrofon w ręce człowieka fotografie, zdjęcia stockowe, Mikrofon w ręce człowieka obrazy royalty-free
![Here are 5 Inventions That Changed Music – The Geeks and Beats Podcast with Alan Cross and Michael Hainsworth Here are 5 Inventions That Changed Music – The Geeks and Beats Podcast with Alan Cross and Michael Hainsworth](https://i0.wp.com/www.geeksandbeats.com/wp-content/uploads/2017/10/1035x955-microphone-1800-1394978637.jpg?resize=810%2C747)