OSI Reproduction Boards interest list

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dave
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OSI Reproduction Boards interest list

Post by dave » Wed May 17, 2017 10:59 pm

Now that we have Gerbers from scans of several original OSI boards, we are able to produce some bare PCBs.

We already have some actual PCBs out there, including Grant's 600 and 610 boards, Grant's data separator board, Grant's 470Z disk interface with data separator and RAM/ROM, plus Jonathan's universal memory board and 560Z board. I think these are all available now, or will be soon.

It looks like the cost will be on the order of $20-$25 per board if we get at least 10 PCBs in an order, not counting shipping. This is using the PCBcart online calculator for prototype boards. There may be better prices out there.


I would like to use this thread to express interest in the following boards:

502 (6502 CPU with 8K RAM and BASIC in ROM)
505 (6502 CPU with floppy interface and extra I/O; no RAM )
540B (color video board, 32 x 64)
582 4-slot backplane
580 8-slot backplane

These, together with the boards mentioned above, should be enough to create a full OSI system. For disk interfaces (if you don't have a 505 board) I would look into Grant's 470Z board. For memory, I'd look into Jonathan's new universal 12-bit memory board before an older OSI board.

I am considering doing a scan of the 48K dynamic RAM board and the 24K static RAM board, but the 24K RAM requires its own power supply in C2/C4 systems. it's got 48 2114 chips drawing 70 to 100 mA each. The lower end of that range is the low power 2114L chips!

Use this thread to record your preference. If any board has 10 interested folks, I'll pull the trigger.

**EDITED to add 582 4-slot backplane to the list. This would be useful for reproducing a C4P with a case/keyboard, while the 8-slot backplane would be more appropriate for a box-style computer.

dave
Site Admin
Posts: 365
Joined: Tue Sep 09, 2008 5:24 am

Re: OSI Reproduction Boards interest list

Post by dave » Wed May 17, 2017 11:00 pm

To get this started, I'm in for:
1 x 502
1 x 505
1 x 540B
1 x 580
1 x 582

gekaufman
Posts: 11
Joined: Mon Nov 23, 2015 12:57 pm

Re: OSI Reproduction Boards interest list

Post by gekaufman » Thu May 18, 2017 2:56 pm

Dave -

I'd commit to 2 of each board.

- Gary

MK14HAK
Posts: 254
Joined: Wed Mar 16, 2011 1:49 am
Location: New Zealand

Re: OSI Reproduction Boards interest list

Post by MK14HAK » Thu May 18, 2017 11:42 pm

I'll be back with an order too thanks Dave. Some research needed first.
Mike
600RevB:16K,2MHz,64x32,470,CEGMON
SuperKit:502,540B,542B,CEGMON, 8" and 5" FDDs
Cards:PE IO,6522 D-A-D, AY3-8910,ProgramGraphics,Color,UK101
WIP:Archive/Restore Util,HexDOS,FDD Emulator

Steve Gray
Posts: 158
Joined: Mon Oct 06, 2008 1:54 pm
Location: Markham, Ontario, Canada
Contact:

Re: OSI Reproduction Boards interest list

Post by Steve Gray » Fri May 19, 2017 3:38 am

I'm in for 1 each.
1 x 502
1 x 505
1 x 540B
1 x 580

Steve
C4P+D&N floppy not working, 2x C4P not working, C1P not working, Superboard not working.
505 board, 610 board, Mittendorf board, TOSIE hacker board need testing, PicoDOS disk untested

Klyball
Posts: 150
Joined: Tue Dec 09, 2014 12:53 am

Re: OSI Reproduction Boards interest list

Post by Klyball » Sat May 20, 2017 4:16 pm

I'm in for a

540B
580
Replica 600 Rev D:8K,CEGMON
Replica 610 Rev B: 24k,MPI B-51 with Custom Data separator D-13
510 on the bench/replica 582 backplane/replica 470a /replica 555/original 570B/2 x Shugart 851
Ongoing : 630 ,620 ,510,542c,custom 590,SA1200,592,594,596,598

dave
Site Admin
Posts: 365
Joined: Tue Sep 09, 2008 5:24 am

Re: OSI Reproduction Boards interest list

Post by dave » Sun May 21, 2017 3:11 am

We also have gerbers for the 582 4-slot backplane, which my be of interest to anyone who would prefer a C4P style computer rather than a C8P big-box style.

You can see the list of available reproduction boards on the Github site.

Feel free to express interest in any other of the boards here as well.

Dave

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