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directdriver 14th July 2009 09:13 PM

need Teres platter diameter
 
I am in the process of machining a pulley for my friend's Teres turntable (he's too busy and not have the turntable with him at the time) and I need the diameter of the platter. This is the earliest version of the Teres project. Any help is appreciated. Thanks.

AndyN 16th July 2009 05:51 AM

I measure mine at 12" 15/64, using a 24" Starrett rule w/ 64ths scale. The grads are so fine, it might round down a bit to 14/64ths, but using the 32nds scale, it looks a bit proud of that lower mark.

The platter measured is the early frosted one, with a stick-on strobe.

Hope that helps.

kilowattski 17th July 2009 04:11 PM

Re: need Teres platter diameter
 
Quote:

Originally posted by directdriver
I am in the process of machining a pulley for my friend's Teres turntable (he's too busy and not have the turntable with him at the time) and I need the diameter of the platter. This is the earliest version of the Teres project. Any help is appreciated. Thanks.
Here is a drawing of a pulley design that works well with a Teres Platter. I can be made for string or tape. This is from a group buy back in 2007 by Algar Emi.

https://www.diyaudio.com/forums/atta...amp=1196169229

directdriver 18th July 2009 02:24 AM

Thanks for all the help. I was searching for a suitable direct-drive turntable as the motor to drive my friend's Teres platter.

grubyhalo 20th July 2009 09:13 AM

Re: Re: need Teres platter diameter
 
Quote:

Originally posted by kilowattski


Here is a drawing of a pulley design that works well with a Teres Platter. I can be made for string or tape. This is from a group buy back in 2007 by Algar Emi.

https://www.diyaudio.com/forums/atta...amp=1196169229


Would this design work with a platter like this one driven by a mkelly/algar drive system?

http://diyhifisupply.com/node/452

Also, does anyone have a pulley from the GB to sell?

ckniker 20th July 2009 11:36 PM

Pulley spindle / bearing
 
On a similar note, where would one find the spindle or bearing that the pulley mounts to ?

I currently own a Teres and am redesigning the plinth. I'd like to add an idler pulley / tensioner in addition to the drive pulley mounted on the motor pod.

If I had a suitable pulley, what kind of bearing / spindle would I mount it to (on the plinth)?

Chris

directdriver 21st July 2009 01:27 AM

Are you trying to implement something like the Artemis SA1 turntable designed by Frank Schroder?
http://www.soundscapehifi.com/artemis-labs-sa-1.htm

ckniker 21st July 2009 01:46 AM

Yes, I'd like to try something similar but haven't found a source for the parts yet.

Chris

kilowattski 21st July 2009 04:06 AM

Something like the tension arm from an old reel to reel would be absolutely perfect for your application.

ckniker 21st July 2009 07:55 PM

I don't want to hijack this thread too much.....

Thanks for your suggestion regarding the tension arm from a reel-to-reel, Unfortunately, I don't have an old reel-to-reel deck (or old VCR, etc.) so I'm looking for an alternative, ready-to-purchase parts source. In addition, I'd like the pulley and tensioner to be non-compliant (no rubber and / or springs).

Thanks again.


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