rx01 w/o controller board - test-drb@ccmp.vtda.org

5 Apr 2005

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Subject: Re: rx01 w/o controller board
   From: "Eric Smith" <eric at brouhaha.com>
   Date: Tue, 05 Apr 2005 11:50:38 -0700 (PDT)
     To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at
classiccmp.org>

Brad wrote:
I bid on an RX01 on ebay, hoping it had a controller card.   Naturally it's
  just the drive.  [...] where can I get a
controller card [...] Naturally
 I have an unibus rx01 controller card, so all I need is a controller card
 for this drive, right? 
I'm completely confused.  You have a controller card?  Or you don't?  If
you have one, surely you don't need one?  Or are you saying that you need
one for a different bus?  Or is your drive missing the drive electronics,
which is the real controller (vs. the Mxxxx "controllers", which are
really just host adapters)?

The "controllers" (host adapters) are:

         Unibus         Qbus             Omnibus
         -----------    -----------      ----------
RX01     RX11  M7846    RXV11 M7946      RX8E M8357
RX02     RX211 M8256    RXV21 M8029      RX28 M8357 
Eric,  Sound to me like he got a bare drive and no 54-xxxxx boards
and PS to make a complete rx01.  Iv'e found the base mechanics are
common as people part out rx01/02s for the boards or PS.

Brad, 
If you listening the real RX01 is heavy, two drives
in a rack width cab nearly 11" high, contining a
powersupply and two long cards that supply drive 
interface (for both drives) and processor (nearly a 
complete FDC in itself).

Allison