Video duration: 84 seconds
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A demonstration of recording on a tinfoil phonograph, as invented by Edison in 1877. The phonograph seen here is an exact replica of an all-brass exhibition machine as made by Bergmann in late 1878. This replica was built by the late Bill Ptacek. It's a massive phonograph, weighing 125 pounds.
Video duration: 216 seconds
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This is a machine I built in work while the company was slow. It plays edison type cylinder records from the late 19th century to the early 20th century more information can be gleaned from my web site: http://home.cogeco.c a/~krmaybery/Homepag e.htm
Video duration: 424 seconds
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From www.josepino.com - An easy-to-build home-made record player using LEGO NTX, just a few parts with a fair quality. The NTX parts makes it easier with better quality than the older Mindstorms Gramophone.
More details at http://www.josepino. com/lego_robots
Video duration: 254 seconds
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A la vez que los discos como soporte del sonido grabado existía el cilindro.
El disco permitía una tirada indefinida de copias.
En el caso del cilindro solo se podía hacer una sola copia de la toma de sonido.
Con lo cual para hacer duplicados había que grabar con varias maquinas a la vez en la misma toma.
![\"Phonograph\" by Jesca Hoop](http://img.youtube.com/vi/sjPZWT9ecU8/2.jpg "\\"Phonograph\\" by Jesca Hoop")
