29
Aug
Homemade Gramophone / Vinyl Record Player (Phonograph)
Author: admin // Category: old vinyl records
From http://www.josepino.com – This is my home-made gramophone using just a plastic cup, a pin and some Lego Mindstorms parts. The pin picks the sound from the vinyl disk and the plastic cup amplifies the sound. A paper cup works fine, a foam cup also works but I didn’t like the results.
The plastic cup amplifies the high-frequency tones but not the lower-frequencies, so I did put a napkin inside the cup to reduce the higher frequencies. Using softer materials may help to get lower frequencies amplified.
Details of this homemade phonograph are posted at www.josepino.com/lego_robots
Duration : 0:1:57
These were found in an abandoned house, and were covered in mildew and all kind of nasty stuff, so I figured I’d clean them, and then find out what’s on them, so stick around for that. Never cleaned such a dirty record before, so hopefully I didn’t ruin them or anything. If you want to watch the way I stumbled onto them, check out the “Scavengers” video series 
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