Before Chak posted, I would have said it's a TT101 with vacuum platter, not a TT81. But if you look at the cross-sectional views on Vintage Knob, you will see that much of the interior space is taken up by the vacuum system, which when I first saw the pictures made me wonder how on earth they can fit all the TT101 electronics in there. So, if it's a TT81, that makes more sense to me. In any case, if it's a TT101 electrically, that service manual is also available on VE. So, you are covered either way. I think it does state on Vintage Knob that it is a TT101, electrically, but VK is not infallible.