Shugart 800 spindle bearings (Re: Shugart 800-8 media centering problem)

Ethan Dicks ethan.dicks at
Mon Aug 17 16:37:56 CDT 2015

On Mon, Aug 17, 2015 at 5:22 PM, Jay Jaeger <cube1 at> wrote:
> Well, in the process of repairing the Altos power supply I managed to
> break the center lead off of the TIP31A that feeds the 2N3055 series
> pass transistor.  This time, I need to order parts.

Isn't the center lead also the tab?

> Also, the Shugart 801 drive I was testing is part of a pair in a Data
> Systems ADS-440 dual floppy system intended for use in a PDP-11 that I
> have never used.  (Would have to look - looks like it needs its own
> special interface card).

Yes.  There would have been a Qbus interface card for that.


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