And RA8x too, was Re: RA90 or RA92 disks - test-drb@ccmp.vtda.org

21 Mar 2012

From: "Johnny Billquist" <bqt at softjar.se>
Sent: Wednesday, March 21, 2012 9:46 AM
To: <cctalk at classiccmp.org>
Subject: Re: And RA8x too, was Re: RA90 or RA92 disks

...
  On 2012-03-20 18:00, "Henk
Gooijen"<henk.gooijen at hotmail.com> wrote:
  From: "Dave McGuire"<mcguire at
neurotica.com>
 Sent: Tuesday, March 20, 2012 1:58 AM
 To: "General Discussion: On-Topic and Off-Topic Posts"
 <cctalk at classiccmp.org>
 Subject: And RA8x too, was Re: RA90 or RA92 disks

  >  On 03/19/2012 11:53 AM, Kevin Reynolds
wrote:
> >>  Anyone have working RA90 or RA92 disks that they would like to part 
> >> with?
> >>  Send me a private response with pricing and availability.  I'm in 
> >> the US.
 >
 >     I make the same request, in case someone has a bunch. =)  I'm 
 > interested
 >  in RA8x drives as well.
 >
 >              -Dave
 >
 >  --
 >  Dave McGuire, AK4HZ
 >  New Kensington, PA 
 Haha, I have at least 5 RA82 compete drives, but I really am*not*
 considering shipping them.  Pick up only, but this time the chaps
 in the USA are at the wrong side of the big splash. 
 RA drives, except the RA7x ones, are probably way too expensive to ship 
 longer distance.

  I also have a few RA90 and RA70 IIRC, I'd
have to check.
 I might be willing to sell one or two, but shipping from The Netherlands
 to anywhere will certainly be costly! And My testing will be very 
 limited.
 I have an SA72 which can hold 4 RA9x drives, but I can not test them
 beyond power up to the "READY" state (IIRC). AFAICR, you can not
 simply install the RA70 in the SA72. 
 Hum. Correct me if I'm wrong, but isn't the SA72 the box that holds up to 
 4 RA7x drives? Same physical size as one RA90?

 If so, then no, it don't hold 4 RA9x drives. Also, the RA70 works just 
 fine in it, as do all RA7x drives. RA70 is somewhat unique, though, in 
 that it was designed to also be usable without any front panel at all. So 
 there are dip switches on it that can be used to set the unit number.

 Johnny

 -- 
 Johnny Billquist                  || "I'm on a bus
                                   ||  on a psychedelic trip
 email: bqt at softjar.se             ||  Reading murder books
 pdp is alive!                     ||  tryin' to stay hip" - B. Idol 

You may very well be right Johnny.
I was just dumping my grey memory cells :-)  I did not check the HW.
Isn't the SA72 a small slim long metal box with a power supply in the
middle and room for two RA[79]x drive at both ends? At the front side
at the top is a connector for the small front panel. The width of the front
is 0.5 of 19" so that two of these fit next to each other in a 19" rack.
If that's way off, I'd have to check what I actually have ...

- Henk.