IMSAI disks

< sent us a cardboard baffle to try to get it to work but the only real < solution for us was to use a different brand of 8" drive. Did anyone < ever have a good experience with Calcomp floppy drives? DEC used the mechanics and heads for the RX01 and RX02 disks with good results. The electronics however were DEC built. < This was pre-CP/M days, we used the floppy as a sort of fast paper tape < replacement, keeping a manual directory of tracks which held code. I < patched in a crude driver to the ALS-8 assembler development ROM system < from Processor Tech to read/write memory blocks onto the floppy. It's needs for a seperate CPU and a NEC D372 controller is familiar. The grandfather to the design was used as a proto for a NEC TECH note which I have. I used a version that for a NEC (NOT S100) PDA80 development system and it worked ok with good drives. Allison