Record Player/Turntable Models wanted with Possibility of Varying the Distance from Platter to the Belt Drive Motor
I remember a turntable where there was an adjustment option for exact defining the right distance between belt drive motor and the platter. Very similar to those construction:
https://www.audiomatica.com/wp/?page_id=3024
Unfortunately I don't know the associated brand and model.
The aim for this could have been to compensate for different sizes and flexibility of various replacement belts, but also to adjust in exact manner the optimal belt tension.
From my view the right value for tension of belt is reached, when both the value for "Wow and Flatter" and current flow from the belt drive motor control is as low as possible.
However, there may be other aspects that must be taken into account concerning belt tension.
Maybe the adjustment instructions explain that in the associated service manuals of this models in detail, that I would like to know.
Thank you for an advice.
This thread is of interest in this case, but it is not only closed - unfortunately also deleted (dead link):
https://www.diyaudio.com/community/threads/belt-drive-turntables-a-lesson-in-physics.358391
This threads don't provide the right hints therefore:
https://www.feedandgrain.com/magazine/belt-speed
https://www.basisaudio.com/revolution-belt
https://www.vinylengine.com/turntable_forum/viewtopic.php?t=94218
https://www.theabsolutesound.com/ar...scendence-turntable-and-superarm-125-tonearm/
https://galibierdesign.com/support/drive-calibration/
https://www.vinylengine.com/turntable_forum/viewtopic.php?t=5644
http://korfaudio.com/blog92
https://vacationvinyl.com/how-to-measure-a-turntable-belt/
I remember a turntable where there was an adjustment option for exact defining the right distance between belt drive motor and the platter. Very similar to those construction:
https://www.audiomatica.com/wp/?page_id=3024
Unfortunately I don't know the associated brand and model.
The aim for this could have been to compensate for different sizes and flexibility of various replacement belts, but also to adjust in exact manner the optimal belt tension.
From my view the right value for tension of belt is reached, when both the value for "Wow and Flatter" and current flow from the belt drive motor control is as low as possible.
However, there may be other aspects that must be taken into account concerning belt tension.
Maybe the adjustment instructions explain that in the associated service manuals of this models in detail, that I would like to know.
Thank you for an advice.
This thread is of interest in this case, but it is not only closed - unfortunately also deleted (dead link):
https://www.diyaudio.com/community/threads/belt-drive-turntables-a-lesson-in-physics.358391
This threads don't provide the right hints therefore:
https://www.feedandgrain.com/magazine/belt-speed
https://www.basisaudio.com/revolution-belt
https://www.vinylengine.com/turntable_forum/viewtopic.php?t=94218
https://www.theabsolutesound.com/ar...scendence-turntable-and-superarm-125-tonearm/
https://galibierdesign.com/support/drive-calibration/
https://www.vinylengine.com/turntable_forum/viewtopic.php?t=5644
http://korfaudio.com/blog92
https://vacationvinyl.com/how-to-measure-a-turntable-belt/
The mentioned thread did not touch the question of optimal tension. It was a lengthy debate between two parties: one stating that the speed is determined by the platter/pulley diameter ratio regardless of the belt parameters, the other camp is for adding half thickness of the belt to the platter/pulley radius. Don't regret it, it was full of personal attacks around the end, without any useful technical information.
In post #2 under
https://www.diyaudio.com/community/...urntable-and-replacement.390372/#post-7126691
are some advices, but exactly adjustment hints concerning belt-tightening resp. right value for tension of belt are rather in an service manual of a turntable with sliding motor base.
https://www.diyaudio.com/community/...urntable-and-replacement.390372/#post-7126691
are some advices, but exactly adjustment hints concerning belt-tightening resp. right value for tension of belt are rather in an service manual of a turntable with sliding motor base.