IDing IBM Floppy Drive Parts

From: Don Maslin <donm_at_cts.com>
Date: Sun Mar 9 01:01:00 2003

On Sat, 8 Mar 2003, Richard A. Cini wrote:

> Hello, all:
>
> I got a couple of IBM-labeled Tandon drives and a MPI/Control Data drive.
> The Tandon drive is a standard TM100-2A and the CD drive has the following
> ID#s -- Part 77711801, IBM Part# 1502060.
>
> I'm trying to recycle these in my N* (double density setup). The jumper
> area is unlabeled on these drives, as is the terminator spot. On the Tandon
> drive, I found a TRW IC near the floppy connector...it has a designation
> "516-3-151G"...this seems to be the terminator.
>
> Can anyone confirm the placement of the terminator and the jumper block
> pinout for both drives? Any help appreciated.

Rich, the terminator sounds right. One that I have differs only
in a -1- vice your -3-. It is in position 2F nearest to the card
edge connector. The programmable shunt in position 1E is as
follows:
        1 O HS NOT USED O 16
        2 O DS0 O 15
        3 O DS1 O 14
        4 O DS2 O 13
        5 O DS3 O 12
        6 O MX O 11
        7 O SPARE O 10
        8 O HM NOT USED O 9

                                                - don


> Rich Cini
> Collector of classic computers
> Build Master for the Altair32 Emulation Project
> Web site: http://highgate.comm.sfu.ca/~rcini/classiccmp/
> /************************************************************/
Received on Sun Mar 09 2003 - 01:01:00 GMT

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