Re: Archiving otrona attache disks

2021-09-02 Thread Bill Degnan via cctech
I have an Otrona Attache disk, I've imaged using Dunfield's Image Disk
program:
https://www.vintagecomputer.net/disk_images/ATTACHE/015.IMD
If there is interest, please download and create a disk and try to use the
disk on your Attache or MAME emulating an Otrona Attache.  Let me know if
you run into any problems.  I am not sure if this particular disk image
results in a bootable disk or if it's a data disk (WordStar files).
Bill

On Fri, Aug 20, 2021 at 9:09 PM Fred Cisin via cctech 
wrote:

> On Fri, 20 Aug 2021, Bill Degnan via cctech wrote:
> > Is there a simh for the otrona attache?  I have some.disk images created
> > with Dunfield's utility..if not I will try to read them by using the
> Zorba
> > portable, which is pretty good with varied formats.
> > Bill
>
> Otrona is fairly straightforward for format conversion.
> CP/M and MS-DOS.  There might have been other operating systems for them,
> but I didn't run into any.
> They had 40 track and 80 track drives.
> 512 bytes per sector, so they can be done using Int13h, without even
> needing Int1Eh.
> 10 sectors per track;  inter-sector gaps were tight but not unreasonable.
> I don't remember whether they were numbered 0 - 9 or 1 - 10
>
>


Re: problem in HP 3000 System 37

2021-09-02 Thread J. David Bryan via cctech
On Thursday, September 2, 2021 at 8:16, Gavin Scott via cctech wrote:

> P.S. The HP Museum has the CE handbook for the 37 and Micro 3000, but
> it's in the 3000 Micro XE section. You can find it by searching within
> the Documents page linked at the bottom of the left side navigation
> bar. 
> 
> 3000-37-MicroFamily_CEServiceHandbook_30457-90039_200pages_Feb89.pdf

Page 5-31 of that manual details the LED display codes.

Note also that the Series 37 requires certain PCAs to be in certain slots 
(pages 3-2 and 3-4), so it would be good to verify this too.

And as Gavin mentions, the CPU tries to talk to the terminal after 
completing the self-test, so it's important to have a working terminal 
connected and turned on when powering up the system.

  -- Dave