Victor TT 801

The TT-81 sm shows a single PCB in the explosive view. In section 11, only one half-moon shaped board named TAS-19C is described fpr layout & components.

My TT-801 has two larger half-moon shaped boards plus another smaller one between those two and the platter. Which speaks for the theory that TT-801 is a higher-intergrated version of TT-101 

@best-groove try wilkinsons in Lancashire UK. They have the JVC museum and worked on my two tt101's ask for David and mention that they were recommended by me 'Lohan'

After limited investigation, it seemed the TT801 is a TT101 with  vacuum platter. The TT801 used ICs where the TT101 used discrete transistors, in order for the 801 to accommodate the plumbing necessary for the vacuum feature.

@lohanimal I can try since I have been looking for it for a long time; but I am pessimistic because not even in Japan since the 801 was intended for the domestic market only is available.

I've scoured the world.