Thorens TD125 Platter Help

[pantoramasan]

Anyone have an Idea what purpose these drilled areas are for? I am guessing for plate balance, but I have never seen anything like this before. Just curious if this is normal.

Thanks

 

[jgordon]

Yes, balance. That was a heavy side, and they drill until it's even at rotation.

 

[pantoramasan]

Thanks much for confirming my suspicion...

 

[Blue Shadow]

I have those on my TD-125 (like yours, no mark) and do not on my TD-160 Super. 10 years difference in age and maybe the production of the platter got better or maybe they didn't worry about it as much. I thought it was interesting that newer platters don't have the balancing drill marks.

 

[pantoramasan]

Yeah, I just purchased a Thorens TD125 MKII and the platter has no drill marks. Interesting. I doubt that you can cast a perfectly weighted and balanced platter. Maybe they took more care early on.

 

[4-2-7]

In making a cast platter it has to be balanced, no poured casting is balanced. In fact seeing balancing techniques, drill holes points to more attention to care and QC than not seeing any.

 

[pantoramasan]

I tend to agree with 4-2-7...

 

[4-2-7]

I tend to agree with 4-2-7...

You also might want to look at the sub-platter, is it balanced, does it have marks to set the platter in the same location on the sub.

SOTA platters are balanced with the bearing and the glued on platter mat as a whole unit.

 

[pantoramasan]

It does have a mark to set the platter on the sub-platter but there are no drill marks.

 

[ehoove]

I have had TD150, TD160, TD160super, TS125, TD125MkII, and TD126MkIII tables. the TD125 was the only one with drill marks. They all were close in weight except the TD126MkIII which was lighter.
Regards,
Jim