how to use only lower track (head 0)

[hwrdmltn]

Well I apologize to you all as I obviously misunderstood what I was getting into here. I didn't realize that this little bugger does NOT distinguish between any format higher than flux changes.
While (I think !!) I understand this level of interfacing, is this useful for restoring and building old skool 8 bit operating system disks, or is this a better tool to service floppy drives with?

Thanks...W1ARQ Howard