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KseniaOffline
Post subject: Gramophone problems – need help!  PostPosted: May 23, 2014 - 11:27 AM
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Hello,

Recently I bought an antique horn gramophone (photo in Youtube links). I would like someone help me to understand why most of the records sound rather distorted.

Examples of distortion:
http://youtu.be/ciMxQxP9wIY?t=2m25s, http://youtu.be/Skgp-mWI_bY?t=10s, http://youtu.be/CMDQCoc5GfE?t=1m45s

Examples of vibration/wobbling:
http://youtu.be/Skgp-mWI_bY?t=3m40s, http://youtu.be/Skgp-mWI_bY?t=3m5s

However, a few records sound excellent, for example: http://youtu.be/06SVo8UivOI

Is the distortion due to damaged records or something is wrong with the gramophone itself?
I play each record side with a new needle. Old rubber gasket in the sound box has been replaced by a new one.

I can provide more information if needed.

Thank you in advance!
 
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sun-rockerOffline
Post subject:   PostPosted: May 27, 2014 - 03:04 PM
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I own a horn gramophone too, and mine plays records very different - it depends on the record itself.

Some of my old gramophone records from the 20s and 30s are really damaged from playing with these steele-needles. Most people didn't changed the needle after each side (like it should be). So the needle damaged the groove after the first side of the record. This kind of record will have a lot of hiss on it and often distortion, vibration whatever.

Other records are in fine condition, nearly like new - these ones are playing great on the gramophone with a clear and wonderful sound.

Very old gramophone records from about 1900 - 1920 have a smaller, thinner sound than later ones from the late 20s on.

I play also some jazz shellacs from around 1940 on my gramophones and they are often very loud and some have a much fuller sound than the real old ones.
 
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annaloogOffline
Post subject:   PostPosted: May 27, 2014 - 11:07 PM
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Keep in mind, there was no playback standard common to all "78" rpm records, esp. during the pre-electric era. Aside from speed variations, some records, such as those on the Edison Diamond Disc and Pathé labels, were vertically cut, and should not be played on a player meant for laterally-cut disks such as Victor/Victrola, Columbia, etc. (and vice versa).
 
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KseniaOffline
Post subject:   PostPosted: Jun 02, 2014 - 02:48 PM
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sun-rocker wrote:
I own a horn gramophone too, and mine plays records very different - it depends on the record itself.

Hello,
Thanks for the answer!
You are saying that your gramophone plays the records very differently – what exactly are the differences? How common is the distortion such as on my examples?


annaloog wrote:
Keep in mind, there was no playback standard common to all "78" rpm records, esp. during the pre-electric era.

Hello,
Thanks for the answer!
I don’t think that I have any vertically cut records, so in my case this is not the problem.
Do you think the wobbling sound could be a result of that some records aren’t exactly 78 rpm, so the playback (78 exactly) is wrong for them? So, is it possible that the wobbling on a particular record will disappear with the correct playback speed?


Also, how much does the condition of the sound box affect the sound?
 
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KseniaOffline
Post subject:   PostPosted: Jun 05, 2014 - 06:30 AM
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Some photos of the sound box:



Sound box 1.jpg
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Sound box 1.jpg



Sound box 2.jpg
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Sound box 2.jpg


 
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KseniaOffline
Post subject:   PostPosted: Jun 11, 2014 - 01:53 PM
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Hello,
Just to let everyone know, the problem is now fixed. It seems that the main cause of the problem was the wrong angle of the sound box. After raising up the back bracket (as illustrated in the first photo), the angle of the sound box was corrected and the sound distortion is gone from almost all records.
Here you can listen to the same record being played before and after the angle of the sound box was changed: http://youtu.be/1jnGRw93xAc

- Ksenia



Gramophone repaired 1.jpg
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Gramophone repaired 1.jpg


 
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KseniaOffline
Post subject:   PostPosted: Jun 11, 2014 - 01:54 PM
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More photos:



Gramophone repaired 2.jpg
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Gramophone repaired 2.jpg



Gramophone repaired 3.jpg
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Gramophone repaired 3.jpg


 
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