Search found 158 matches

by Steve Gray
Fri May 19, 2017 3:38 am
Forum: OSI discussion, thoughts, projects
Topic: OSI Reproduction Boards interest list
Replies: 6
Views: 112

Re: OSI Reproduction Boards interest list

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

Steve
by Steve Gray
Fri May 05, 2017 2:07 pm
Forum: Most Wanted List
Topic: OSIWeb.org wish list :-)
Replies: 38
Views: 11270

Re: OSIWeb.org wish list :-)

Dave,

I scanned and uploaded "The Bookkeeper's Bookkeeper" brochure to your dropbox folder.

Steve
by Steve Gray
Thu May 04, 2017 6:50 pm
Forum: Most Wanted List
Topic: OSIWeb.org wish list :-)
Replies: 38
Views: 11270

Re: OSIWeb.org wish list :-)

Actually on my board it did connect to the original video circuit. That was what the smaller ribbon cable was for. On the end of it was a small PCB with solder tabs. From these were some 30ga wires that ran to various points on the Superboard. Unfortunately over the years they had all come lose and...
by Steve Gray
Thu May 04, 2017 6:46 pm
Forum: Most Wanted List
Topic: OSIWeb.org wish list :-)
Replies: 38
Views: 11270

Re: OSIWeb.org wish list :-)

Dave,

I just scanned and uploaded "TinyCompiler1.3.pdf" to your drop box. Not sure if it's the same version you mention you're looking for.

Steve
by Steve Gray
Thu May 04, 2017 5:23 pm
Forum: Most Wanted List
Topic: OSIWeb.org wish list :-)
Replies: 38
Views: 11270

Re: OSIWeb.org wish list :-)

Yes, that's the Mittendorf board. Thanks for the nice photos. If someone were to trace out the schematic, I could write something up about it, since I did a hi-res mod for my C2 that I think would be similar enough. I imagine this circuit borrows signals from the video timing chain to sequence addr...
by Steve Gray
Thu May 04, 2017 5:16 pm
Forum: Most Wanted List
Topic: OSIWeb.org wish list :-)
Replies: 38
Views: 11270

Re: OSIWeb.org wish list :-)

I have this board. I'm pretty sure it's a Mittendorf board. Unfortunately I do not have the instructions for it. http://www.6502.org/users/sjgray/computer/osi-c4p/TOSIE-hacker-back.jpg Steve Steve, It's been a while but I always enjoy browsing your 6502.org pages. Great stuff there--some really nic...
by Steve Gray
Wed May 03, 2017 3:42 pm
Forum: Most Wanted List
Topic: OSIWeb.org wish list :-)
Replies: 38
Views: 11270

Re: OSIWeb.org wish list :-)

I just looked through some of my OSI papers and found a listing of my purchases. According to the sheet I paid USD$40 for a bare "High Resolution Graphics Board". It also says it was purchased at Aardvark, but also indicates it is a Mittendorf board. So, I added it to my web page: http://www.6502.or...
by Steve Gray
Tue May 02, 2017 3:47 am
Forum: Most Wanted List
Topic: OSIWeb.org wish list :-)
Replies: 38
Views: 11270

Re: OSIWeb.org wish list :-)

I have this board. I'm pretty sure it's a Mittendorf board. Unfortunately I do not have the instructions for it.
http://www.6502.org/users/sjgray/comput ... r-back.jpg

Steve
by Steve Gray
Fri Mar 24, 2017 5:35 pm
Forum: Introductions and Reminiscence
Topic: Hello there
Replies: 2
Views: 545

Re: Hello there

Hi,

Hello fellow C4P owner! I think I might have purchased your game, and may still have the cassette.... Welcome to the forum!

Steve
by Steve Gray
Sun Mar 05, 2017 2:16 am
Forum: OSI discussion, thoughts, projects
Topic: My C4P Project
Replies: 6
Views: 8500

Re: My C4P Project

Not much progress to report... still planning things. However, since I was in an OSI mood I decided to make a small project webpage: http://www.6502.org/users/sjgray/projects/osi/index.html Right now it's just a place to put thoughts, schematics, links, etc. There is a pdf of my 540B board that's a ...