"Eric J. Korpela" <korpela(a)ssl.berkeley.edu>
Do older external 400k drives work with System 8? I
find it hard to
swing a dead cat without hitting a pile of external Mac (or Apple II)
disk drives.
Apple 400K external drives will not work with any Macs that have a newer
processor than a 68000. They work on the original (128K) Mac, the
512K and 512Ke, the Plus, SE, and maybe the Classic.
The drive requires a PWM motor control signal that later Macs do not
provide.
The 800K and Superdrive (FDHD) do not need this signal.
Eric