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Homemade Gramophone / Vinyl Record Player (Phonograph)
October 25th, 2009 by admin
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
25 Responses to “Homemade Gramophone / Vinyl Record Player (Phonograph)”
Leave a Reply
October 25th, 2009 5:16 pm
hey dj, spin that …
hey dj, spin that wheel!!!
October 25th, 2009 5:16 pm
Your cup is way too …
Your cup is way too heavy ! It will surely shred your new Monkees album! I’m telling Davy Jones. He and Peter Tork are gonna come over and rough you up!
Downward pressure should not exceed 2 grams.
October 25th, 2009 5:16 pm
in conventional …
in conventional vinyl/record players, there is usually a belt to reduce vibration from the motor and thus reduce skipping. good luck!
October 25th, 2009 5:16 pm
HEY!! YOUR RUINING …
lol its cool tho
HEY!! YOUR RUINING AN AWESOME MONKEES RECORD
October 25th, 2009 5:16 pm
you should put a …
you should put a flat table on the bottom so it doesnt warp the record
October 25th, 2009 5:16 pm
sweet contraption, …
sweet contraption, but dont use it on any good records.
October 25th, 2009 5:16 pm
Well the cup should …
Well the cup should be sideways, the information is encoded in sideway movements of the groove. There should be only tiny amounts of force on the record. This construction places lots of force on the record.
What’s noteworthy is that the song we hear is without vocals. This is because this machine here tracks the height of the track which actually encodes the difference between left and right channels. As the vocals typically are on both channels, the substraction removes it.
October 25th, 2009 5:16 pm
oh ok then
oh ok then
October 25th, 2009 5:16 pm
it was a Berg Sans …
it was a Berg Sans Nipple record that my brother didn’t want, so we used it. It had a really loud bass and made the cone skip. But thanks for the advise. My dad hooked up the turntable to some speakers and put a record needle on it. Now I can listen to vinyl
October 25th, 2009 5:16 pm
dont use a pin …
dont use a pin needle it is bad for your record
October 25th, 2009 5:16 pm
I used a paper cone …
I used a paper cone and sewing needle, then I taped it to my dad’s old turntable. Every time the bass drum played, the arm would skip all over the place! I tried a paper cup and it was much better.
October 25th, 2009 5:16 pm
You should try to …
You should try to reduce the level of the engine noice.
October 25th, 2009 5:16 pm
thats awesome , …
thats awesome , cool ingenuity on that right there.
October 25th, 2009 5:16 pm
Impressive!
Impressive!
October 25th, 2009 5:16 pm
Using the pin to …
Using the pin to play the disc you will degrade the sound quality even with 1 play.
October 25th, 2009 5:16 pm
I know, Thanks. …
I know, Thanks. Good advise.
October 25th, 2009 5:16 pm
The sound it’s so …
The sound it’s so bad for the ear.
October 25th, 2009 5:16 pm
JosePino knows this …
JosePino knows this will damage the record. And you CANNOT play 78s with a metal needle either. They are more durable than vinyl to groove wear but still are degraded by this type of playback.
October 25th, 2009 5:16 pm
I think the napkin …
I think the napkin probably helps soften the treble and equalize the sound. The RIAA equalization curve (which is used for all records) boosts treble by 20 db before recording to record then electronically reduces it on playback to reduce surface noise (sort of like Dolby for cassettes). It also reduces bass on recording and boosts it on playback.
October 25th, 2009 5:16 pm
Amaizing job :O
Amaizing job :O
October 25th, 2009 5:16 pm
I have uploaded …
I have uploaded many hi-quality vinyl recordings of popular rock and pop bands. Click my username to hear them . Make sure you watch them in ‘hi-quality’ so you can fully appreciate how great vinyl can sound!
October 25th, 2009 5:16 pm
NicE! CHALLENGE: …
NicE! CHALLENGE: Now add an automatic pick-up system so that it picks up the cup and needle when the records over and shuts off…
October 25th, 2009 5:16 pm
how did u make that …
how did u make that???
its s cool i bugh a record playr thou it plays cds,recorsand casettapes
but its awsome can u tell me how to make one lol
October 25th, 2009 5:16 pm
ROFL. Homeverk!
ROFL. Homeverk!
October 25th, 2009 5:16 pm
The way you have …
The way you have the needle in the cup is not correct for playing that kind of record. The cup should be on its side and the needle should be stuck in the side of the cup at a 60 degree angle to the record. The way you have the cup and needle set up now is to play a record where the recording is in the bottom of the groves when the recording is in the side of the groves in this record. When the reording is in the bottom it is called a vertical and in the sides a horizontal cut.