And there was an older DEC drive, I think it was the
RK01, that was a rebadged Pertec.
--
The RK01 was made by IOMEC (also sold by HP as 2870A)
and was used in the RK8 (NOT the Omnibus RK8E)
I have the drawings for the RK8, which will go up on
bitsavers as soon as the RK8 manual arrives from NL.