Only the READ DATA (RD) version works with the standart PC controllers. The VFO version NOT!
For the PCB of the RD version there are manuals from 1982, for the VFO circuit board I didn't find anything on the internet. This newer PCB is from 1992/8.
In total I have three FDDs. The newest one is from 1992/8, the older ones are from 1984/10. The product numbers (P/N) are 134-100390-667-0, 134-100390-556-0 and ... coming soon.