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I need help with a Dual 1219 that rumbles?

I am just about at the end of my rope with this 1219. Its been to fix my Dual twice with no result. If I run the test record system noise cut(side two track 6) it makes a lot of noise (I can here it loud and clear in quit parts of the music). I have the 1219 on saw horses with no plinth and if I move the idler off the spindle of the motor while it is running my test record, viola the noise is gone. The motor mount looks good ( no cracks etc.) It obviously does not isolate the motor well enough. Anybody run in to this kind of problem? By the way the motor was exchanged so I do not think it is a bearing. Any suggestions for fixing this problem? Is this actually the way they sounded? No way with 1/2 million sold, thanks Markus
markus1
markus1 OP
8 posts
 
I believe the noise comes from the motor, idler wheel assembly as it disappears when I disengage the idler wheel. I think this eliminates the bearing and associated platter assembly, I have replaced the idler wheel itself but not the idler wheel spindle. I like the idea of having a fully automatic tt. Are there new ones worth owning? thanks Markus
mlsstl
1,436 posts
 
There is still a possibility it could be the platter spindle assembly. When the idler wheel is engaged, it places asymmetical pressure at one point on the rim of the platter. This could cause rumble when the idler wheel is engaged.

The problem is that you don't have access to the original specs and tools used for quality control measurement. That leaves you to replace the parts one at a time, hoping the noise goes away.

As for replacing the whole turntable with a new automatic model, you'll probably want recommendations from someone more up to date on current brands.
sidssp
1,077 posts
 
Have you talked to them?

http://fixmydual.com/
lloydc's avatar
lloydc
751 posts
 
Good preamps/receivers from that era often had rumble filters to compensate for the inevitable lf noise. Why intentionally damage records with an automatic? Try a used Rega.
horseface's avatar
horseface
222 posts
 
Jeff Dorgay just released issue 31 of Tone and he has a whole bit on Dual turntables titled "Fix my Dual" ... you should check it out. He specifically mentions the 1219. He has a couple of web sites listed you can go to, fixmydual being one of them.
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