OSI discussion, thoughts, projects

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Where ...

Last post by Jeff « Sun May 03, 2015 3:41 pm
Replies: 1
by BillO » Sat Apr 25, 2015 11:10 pm

1 Replies

1275 Views

Last post by Jeff
Sun May 03, 2015 3:41 pm
Looking for 5.25 drive replacements

Last post by Klyball « Wed Apr 22, 2015 3:17 am
Replies: 7
by lowrybt1 » Mon Apr 13, 2015 5:31 pm

7 Replies

2675 Views

Last post by Klyball
Wed Apr 22, 2015 3:17 am
Found some Tapes

Last post by Steve Gray « Sun Apr 19, 2015 4:06 am
Replies: 7
by Steve Gray » Thu Jan 22, 2015 3:08 am

7 Replies

2720 Views

Last post by Steve Gray
Sun Apr 19, 2015 4:06 am
Challenger 4P Video Problems

Last post by Jeff « Wed Apr 15, 2015 6:00 pm
Replies: 15
by GenericUser » Sun Mar 08, 2015 4:19 am
1

2
15 Replies

4945 Views

Last post by Jeff
Wed Apr 15, 2015 6:00 pm
48 pin bus Backplane

Last post by bsudbrink « Fri Mar 27, 2015 5:18 pm
Replies: 1
by MK14HAK » Fri Mar 27, 2015 12:10 am

1 Replies

1301 Views

Last post by bsudbrink
Fri Mar 27, 2015 5:18 pm
[Solved] Serial puzzle (was DISKREAD / RAWDUMP)

Last post by dave « Fri Mar 27, 2015 11:42 am
Replies: 8
by dave » Mon Mar 16, 2015 9:51 pm

8 Replies

3359 Views

Last post by dave
Fri Mar 27, 2015 11:42 am
cc65 for the Challenger 1P

Last post by stm « Thu Mar 26, 2015 5:39 pm
Replies: 15
by stm » Sun Nov 23, 2014 3:34 pm
1

2
15 Replies

5699 Views

Last post by stm
Thu Mar 26, 2015 5:39 pm
ROM-mapping jumper on 50x-series CPU boards

Last post by MK14HAK « Sun Mar 22, 2015 11:33 pm
Replies: 7
by dave » Wed Dec 28, 2011 4:46 pm

7 Replies

4271 Views

Last post by MK14HAK
Sun Mar 22, 2015 11:33 pm
CEGMON

Last post by BillO « Wed Mar 11, 2015 4:03 pm
Replies: 6
by BillO » Sun Mar 08, 2015 2:40 pm

6 Replies

2243 Views

Last post by BillO
Wed Mar 11, 2015 4:03 pm
CXP board

Last post by Scott Larson « Tue Mar 03, 2015 12:42 am
Replies: 9
by Scott Larson » Mon Nov 10, 2014 6:59 pm

9 Replies

152032 Views

Last post by Scott Larson
Tue Mar 03, 2015 12:42 am
Color and things

Last post by Klyball « Sun Mar 01, 2015 11:25 pm
Replies: 6
by Klyball » Thu Feb 19, 2015 1:27 am

6 Replies

2429 Views

Last post by Klyball
Sun Mar 01, 2015 11:25 pm
WD1772 and OS-65D / Hexdos

Last post by MK14HAK « Sun Feb 22, 2015 11:11 pm
Replies: 2
by BillO » Sun Feb 22, 2015 5:09 pm

2 Replies

1482 Views

Last post by MK14HAK
Sun Feb 22, 2015 11:11 pm
Superboard / 610 replica

Last post by Klyball « Fri Jan 30, 2015 3:24 pm
Replies: 19
by Klyball » Sun Dec 28, 2014 1:52 am
1

2
19 Replies

6909 Views

Last post by Klyball
Fri Jan 30, 2015 3:24 pm
Ohio Scientific Assembly line

Last post by nama « Wed Jan 28, 2015 4:16 am

by nama » Wed Jan 28, 2015 4:16 am

0 Replies

2048 Views

Last post by nama
Wed Jan 28, 2015 4:16 am
Osi 300 Trainer schematics

Last post by MK14HAK « Fri Jan 23, 2015 8:05 am
Replies: 1
by Carbolite » Mon Dec 15, 2014 10:08 pm

1 Replies

1463 Views

Last post by MK14HAK
Fri Jan 23, 2015 8:05 am
C1P on eBay

Last post by Jeff « Mon Dec 15, 2014 4:26 am

by Jeff » Mon Dec 15, 2014 4:26 am

0 Replies

1337 Views

Last post by Jeff
Mon Dec 15, 2014 4:26 am
Video of 4P loading BREAKTHRU via OS65D

Last post by nama « Sun Dec 07, 2014 4:52 am

by nama » Sun Dec 07, 2014 4:52 am

0 Replies

1363 Views

Last post by nama
Sun Dec 07, 2014 4:52 am
OSI 600 Superboard II replica

Last post by nama « Wed Nov 12, 2014 6:32 am
Replies: 30
by vbriel » Sat Mar 29, 2014 2:53 pm
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4
30 Replies

11886 Views

Last post by nama
Wed Nov 12, 2014 6:32 am
540 composite color

Last post by Scott Larson « Tue Nov 04, 2014 10:37 pm

by Scott Larson » Tue Nov 04, 2014 10:37 pm

0 Replies

1466 Views

Last post by Scott Larson
Tue Nov 04, 2014 10:37 pm
Mike Cheiky

Last post by MK14HAK « Thu Aug 21, 2014 8:04 am
Replies: 1
by Steve Gray » Thu Aug 21, 2014 1:38 am

1 Replies

1731 Views

Last post by MK14HAK
Thu Aug 21, 2014 8:04 am
OSI Challenger 4P Retrochallenge project complete

Last post by tezza « Wed Aug 06, 2014 9:53 am
Replies: 4
by tezza » Thu Jul 31, 2014 9:24 am

4 Replies

2143 Views

Last post by tezza
Wed Aug 06, 2014 9:53 am
OSI C4P cassette interface

Last post by tezza « Thu Jul 31, 2014 9:21 am
Replies: 2
by mjmalecha » Wed Jul 23, 2014 3:23 pm

2 Replies

1836 Views

Last post by tezza
Thu Jul 31, 2014 9:21 am
C1PMF

Last post by nama « Fri Jul 11, 2014 2:40 am
Replies: 3
by BillO » Wed Jul 09, 2014 5:47 pm

3 Replies

1976 Views

Last post by nama
Fri Jul 11, 2014 2:40 am
527 RAM expansion board switches

Last post by tezza « Sun Jul 06, 2014 10:20 am
Replies: 7
by tezza » Fri Jul 04, 2014 8:43 am

7 Replies

3637 Views

Last post by tezza
Sun Jul 06, 2014 10:20 am
D&N MEM-CM9 problems

Last post by MK14HAK « Thu Jul 03, 2014 2:03 am
Replies: 19
by nama » Sun Jun 01, 2014 8:59 am
1

2
19 Replies

7800 Views

Last post by MK14HAK
Thu Jul 03, 2014 2:03 am

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