I own a whole bunch of tables BSP (before silly period) and then two that would be chortled at for their lacking any special anything but now of the PVE Post Vinyl Era. My first a MMf 5 is fairly simple and culminating in (so far anyway) a VPI Scout which has a MC cart an arm that is supported by something that wobbles on every aspect possible. Mind you not, super, nor duper, and not a slave nor a master. I indulged in a bunch BSP linear tracking tables. Aquired a couple, in trades just love the linear arm so I think I have 7 others. 2 BSP are semi automatics not linear.
A plinth I take it is a place to set your spinning platter thus by friction your record. This must be a very firm and massive thing if you eschew the trampoliners, where everything shakes so precisely in unison that one part hasn't a clue that somethings shaking. This is less common than the elegent vibration isiolation through absorption and most importantantly mass dampening. You just cannot have enough mass. The most dense things are nasty poisonous things like molten lead. A few grommets of firm but forgiving artificial proprietary geometic repeating fractal spaces seperate the most most masssive perfectly true discs of lets say plastic fractal geometry dipped MDF. Plie them high. get a guy who makes weights out of steel\brass\ lead\ an alloy with a ring of pooled mercury, a few more inches tall- as big as you can in height but no more the 12" diameter. You need a quiet motor so get a megnetic motorvator . It takes 45 mins to get going but if you know more than I the whol thing rests on a point with viscous oil with another pin point support. Once it gets going it will spin a long while. part II later.
I know diddley Not Bo. However in my estimation since the TT must turn at a consistent RPM. In fact very consistent it appears.
A plinth I take it is a place to set your spinning platter thus by friction your record. This must be a very firm and massive thing if you eschew the trampoliners, where everything shakes so precisely in unison that one part hasn't a clue that somethings shaking. This is less common than the elegent vibration isiolation through absorption and most importantantly mass dampening. You just cannot have enough mass. The most dense things are nasty poisonous things like molten lead. A few grommets of firm but forgiving artificial proprietary geometic repeating fractal spaces seperate the most most masssive perfectly true discs of lets say plastic fractal geometry dipped MDF. Plie them high. get a guy who makes weights out of steel\brass\ lead\ an alloy with a ring of pooled mercury, a few more inches tall- as big as you can in height but no more the 12" diameter. You need a quiet motor so get a megnetic motorvator . It takes 45 mins to get going but if you know more than I the whol thing rests on a point with viscous oil with another pin point support. Once it gets going it will spin a long while. part II later.
I know diddley Not Bo. However in my estimation since the TT must turn at a consistent RPM. In fact very consistent it appears.