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PSE Computers disk controller
Posted: Mon Sep 14, 2015 10:45 pm
by sorchard
Found a few of these bare PCBs while digging around:

- Component side
- PSE_Computers_Disk_Controller_Component_Side.jpg (578.4 KiB) Viewed 4002 times

- Solder side
- PSE_Computers_Disk_Controller_Solder_Side.jpg (569.77 KiB) Viewed 4002 times
I think the disk controller I used to use was one of these and it had a Dragon DOS ROM but I can remember very little else about these.
Re: PSE Computers disk controller
Posted: Tue Sep 15, 2015 10:31 am
by robcfg
I created the
wiki page, and added your pictures.
My guess is that you used it with a DragonDOS or compatible rom, am I right?
Thanks for the pictures!
Re: PSE Computers disk controller
Posted: Tue Sep 15, 2015 5:07 pm
by admin
Yes - I have an assembled one with a switch that flicks the rom between DragonDOS and SuperDOS. I have not looked to see if the switch is a factory option or not but I have seen it on more than one of these.
Re: PSE Computers disk controller
Posted: Tue Sep 15, 2015 5:12 pm
by robcfg
That's nice to know!
Does your controller have two roms and a switch, or just a single chip?
Re: PSE Computers disk controller
Posted: Tue Sep 15, 2015 7:03 pm
by tormod
So these were sold as kits at the time?
Re: PSE Computers disk controller
Posted: Tue Sep 15, 2015 8:58 pm
by sorchard
I'd forgotten about that switch. The board took a 16K ROM and the switch selected between two images. It was a feature of the board rather than a hack. I used it with Dragon DOS 1, 4 & SuperDOS E6.
My board came fully assembled. I got some bare PCBs as well but can't remember how or why
I'll add a photo of the assembled board when I find it.