DIY Custom Made Turntables, some doubts..


Hello to all!

Please, someone can explain me how is the process of assemble a turntable when you purchase or DIY the cabinet, purchase a direct driver platter motor, like a Denon or JVC for example, and separated tonearm.

How projects like this works, in order to assemble the turntable with the tonearms correct distance in relation to the platter, in order to work properly?

I presume that tonearms that are sold separately, have all the instructions how to be installed in the correct position, is that right?

Just a example: http://www.aroundhifi.com/tag/turntable/

Many thanks, best regards to all, and feel free to tell me another technical infos that must be considered.

cosmicjazz
Thinman, you can build one heck of a turntable for $10,000, especially if you can do some of your own machining and electronics.

Motor and controller is an issue. Easiest, and arguably the best, is an AC synchronous motor with a solid state controller. I used a Premotec 9904 111 31813, which is specifically designed for high end belt turntables. But since it’s only 1.8W, you have to spin the platter up to speed by hand. Sounds weird - but if your motor has very little power, it has very little ability to vibrate the platter too. You can spend 50K on a TT with this design feature, the Nottingham Deco.

Lots of AC controllers available - I built mine from a schematic in one of the ’Art of Electronics’ books, Second Edition, maybe. A telescope controller. Didn't want one more R&D project at that point!

Good luck, man!
Thinman, you might also want to consider an air bearing. Once you have heard one, there's no going back!

I use a New Way thrust bushing for a very stiff air cushion in 3 dimensions. Virtually noiseless.