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Old 14th July 2009, 10:13 PM   #1
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Default 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.
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Old 16th July 2009, 06:51 AM   #2
AndyN is offline AndyN  United States
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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.
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Old 17th July 2009, 05:11 PM   #3
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Default 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.

Click the image to open in full size.
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Old 18th July 2009, 03:24 AM   #4
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Thanks for all the help. I was searching for a suitable direct-drive turntable as the motor to drive my friend's Teres platter.
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Old 20th July 2009, 10:13 AM   #5
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Default 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.

Click the image to open in full size.

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?
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Old 21st July 2009, 12:36 AM   #6
ckniker is offline ckniker  United States
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Default 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
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Old 21st July 2009, 02:27 AM   #7
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Are you trying to implement something like the Artemis SA1 turntable designed by Frank Schroder?
http://www.soundscapehifi.com/artemis-labs-sa-1.htm
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Old 21st July 2009, 02:46 AM   #8
ckniker is offline ckniker  United States
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Yes, I'd like to try something similar but haven't found a source for the parts yet.

Chris
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Old 21st July 2009, 05:06 AM   #9
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Something like the tension arm from an old reel to reel would be absolutely perfect for your application.
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Old 21st July 2009, 08:55 PM   #10
ckniker is offline ckniker  United States
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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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