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36XX disk drive compatibility & cannibalism

    Date: Tue, 18 Jun 1991 11:27 EDT
    From: delaney@xn.ll.mit.edu (John R. Delaney)

    We have an elderly 3600 (S/N 359) with a dead display but a healthy disk
    drive. We have a newer 3670 with a deceased disk drive. Both look to be
    variant "Eagle" drives. Anyone out there know if they are

    While I am at it, the memory cards seem to have the same P/N. Am I
    corrected in assuming them to be compatible.

Yes, these are all compatible.  The only incompatible pieces between
3600's and other L-machines are the I/O board, I/O paddle, and the

G-machines have other incompatibilities.  None of the boards in the
L-machine processor set (FEP, IO, SEQ, XSQ, MC, IFU, and FPA) are
compatible with G machines, but peripheral and memory boards are.  Also,
L- and G-machines use incompatible disk formatting (maybe someone from
Symbolics would explain why), so disks aren't interchangeable between