Victor TT 101 vs TT 81


I am aware of some of the differences regarding the motors of these two units, but I was wondering if anyone had insights as to the differences in sound (if any) and the differences in reliability (I'm guessing the 81 being simpler might be more reliable, however, it seems to have the better motor).  Any info will be appreciated.
rgs
@lewm the situation went well for your TT101, the break of the pcb is deduced from what was caused? Old age, bad manipulation or something else?

If I’m non wrong I read something of the chip developed by JP for the Technics but if I remember correctly it was for the MK3 much more complicated than the MK2 .... I remember well?
Hi, best groove

It was a cut caused by a scrape that was under the solder mask, so a manufacturing issue.  Nearly the entire trace was cut, except one small corner at the edge of the solder filet, which cracked right at the very corner causing the intermittent connection.  

The MN6042 is used in every Technics table that has digital pitch control. You are correct - not the SP-10 MKII.