Turnable database with TimeLine

Peterayer.
Yep, I went back and had a look at the posts, 05-29-12. on "Turntable Speed Accuracy" thread

Heavy platter and thread drive.

03-25-14: Lewm:
"... do you perceive that the TT-101 and the TT-81 have exactly the same motor? It looks from photos that the TT-101 motor might be different in size or in some other way from that of the TT-81. I know they are both coreless types."

I have only owned the TT-71 before and I do know the it uses a core motor. Based on motor model numbers (TT-71 = M932A, TT-81 = M922A, TT-101 = M926) and pictures I gather online, it's possible the TT-81 uses a similar motor like the TT-71, which is NOT a coreless motor. If you look at this picture in vintageknobs.com the TT-81 appears to be an electronically more sophisticated TT-71 with similar core motor. I think the TT-101 is a different animal with different motor (coreless) and electronics.

Drawings of each motor in exploded view:
TT-71
TT-81
TT-101

Of course, the best way to find out is for Halcro to take a picture of the motor or innards of the motor of TT81 once and for all. If we see the coils wrapped around an iron core then, of course, it's a core motor.


- - - - - - - - - - - - - - - - - - - - - - - - - - -

03-25-14: Lewm:
"Hiho, I can see the light at the end of the tunnel, as regards a report on how the QL10 ensemble "sounds".

Whew! Just reading the travail you went through is adventurous! I look forward to an eventual sonic evaluation of the TT101 comparing to your other DD tables.

_______

Hiho,
Nice research. Somehow, somewhere I came away with the belief that at least the TT81 motor is coreless. Don't know anything about TT71. But I agree with you that the photo seen when I click on "picture" does suggest that the motor has visible poles, therefore not coreless. Moreover, in the exploded views you reference, it appears that the TT71 and 81 motors are more cannister-shaped, whereas TT101 motor is wider and flatter, consistent with Dual-like coreless design. Anyway, Halcro will chime in, I'm sure.

I think I had trouble Timeline-ing my SP10 Mk3, because of a misfit between its spindle and the female receptor for the spindle on the Timeline. That's when I posted that Sutherland ought to offer interchangeable spindle holes, for his $450 price. The Timeline definitely does not fit my Lenco spindle. Maybe THAT was the problem I had, not with the Mk3.