I recall a warning about the datadrives or the Adam
in general: don't
turn on the Adam with a datatape in the drive, the drive will send out a
pulse that may damage data stored on the part of the tape next to the
write head (some said up to a few feet away, I don't know about
that...:/ )
I remember my heathkit (H-89) had a similar warning about starting up with
a disk in the drive.