Revox HS capstan motor differences

[Lpr35]

Hello all .

Someone can say me the difference among the hs motor Revox 1.021.165 ( for A77 ) and the model 1.021.302 ( for B77 - PR99 ) ?

The model 1.021.302 can be put on A77 ?

Thanks.

[tisho88]

Hello,
I am not 100% sure how it is about the HS motors (never had one on hand), but on the normal version the capstan shaft on the B77 / PR99 is around 5mm longer compared to the A77 version.

PS: I never did it, but I suspect B77 shaft maybe will work on A77 (ofcourse the cover will be not mountable), but the opposite A77-> B77 will not work definetely (capstan too short)

Best Regards,
Tihomir