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  • falter's Avatar
    Yesterday, 11:46 PM
    falter replied to a thread Nascom in Other
    Yes set memory to Int. There was one jumper I may not have bothered with.. think it was the one that handled stop bits and something about incoming...
    53 replies | 1257 view(s)
  • falter's Avatar
    Yesterday, 10:17 PM
    falter replied to a thread Nascom in Other
    Progress! Got a screen up after fixing a cut track under IC 19. That got me *something* like cahracters on the screen. Swapping the 74LS163s (and...
    53 replies | 1257 view(s)
  • falter's Avatar
    Yesterday, 08:19 PM
    I bid on this Compucolor. I did not realize they'd reached the strata of Altairs: ...
    3 replies | 82 view(s)
  • falter's Avatar
    Yesterday, 07:38 PM
    falter replied to a thread Nascom in Other
    Ok so made a few discoveries. The 74ls123 at IC18 (think that was it..) had a pin bent out. There is a 74LS162 IC one up from it.. according to the...
    53 replies | 1257 view(s)
  • falter's Avatar
    Yesterday, 05:32 PM
    falter replied to a thread Nascom in Other
    Wired everything up to the defaults, removed the adapter in IC11 and put the 74LS11 on its own there. Removed all the add on wires, wired up to psu...
    53 replies | 1257 view(s)
  • falter's Avatar
    Yesterday, 04:36 PM
    falter replied to a thread Nascom in Other
    NM.. I just reread the manual. Only need -12V for RS232. I'll leave that out for now.
    53 replies | 1257 view(s)
  • falter's Avatar
    Yesterday, 04:29 PM
    falter replied to a thread Nascom in Other
    So I have two power supplies here.. neither has all the voltages I need but between them I do. I know this was done in the past with other vintage...
    53 replies | 1257 view(s)
  • falter's Avatar
    Yesterday, 04:07 PM
    falter replied to a thread Nascom in Other
    Drat.. was ready to use my MMD1 PSU to fire up but forgot it doesn't put out -5V. Always something!
    53 replies | 1257 view(s)
  • falter's Avatar
    Yesterday, 03:53 PM
    falter replied to a thread Nascom in Other
    Agreed. Okay, I've taken lots of pictures.. I think what I'm going to do is get down a step.. remove the Nasbus and all that from the equation.. and...
    53 replies | 1257 view(s)
  • falter's Avatar
    Yesterday, 11:01 AM
    falter replied to a thread Nascom in Other
    Thanks Dave. I feel like I'm in a bit of a bind with this one. Usually my preference is to go to ground and get down to bare bones functionality....
    53 replies | 1257 view(s)
  • falter's Avatar
    Yesterday, 09:22 AM
    falter replied to a thread Nascom in Other
    LK1 is set to Int LK2 is jumpered LK3 is unjumpered LK4 has a removable jumper attached to one pin but nothing else. LK5 is jumpered to EXT LK6...
    53 replies | 1257 view(s)
  • falter's Avatar
    November 18th, 2017, 06:50 PM
    Based on the RAM used I'm kind of thinking mid 80s too. There is another one they have here:...
    6 replies | 162 view(s)
  • falter's Avatar
    November 18th, 2017, 04:54 PM
    falter replied to a thread Nascom in Other
    Ok so some early info as I start tracing things out. The top 3 pin 'user' connector is as follows: Pin 1 - connects to 'LED' Pin 2 - connects...
    53 replies | 1257 view(s)
  • falter's Avatar
    November 18th, 2017, 01:08 PM
    Curious if you guys think this is set up as someone's home computer or is just a part of some industrial machine? ...
    6 replies | 162 view(s)
  • falter's Avatar
    November 18th, 2017, 01:06 PM
    falter replied to a thread Nascom in Other
    Will do. Kind of makes me wish I had an electron microscope. I coulf examine the microfractures in the broken solder points and match where they...
    53 replies | 1257 view(s)
  • falter's Avatar
    November 18th, 2017, 07:14 AM
    falter replied to a thread Nascom in Other
    Thanks Dave. I don't know if you saw it but there was a small loose connector in one of the pics (or might be the video) that looks like it could...
    53 replies | 1257 view(s)
  • falter's Avatar
    November 17th, 2017, 07:01 PM
    falter replied to a thread Nascom in Other
    Great thanks! I may have to go the Nascom by itself route first. But I have a lot to figure out -- chiefly all those little red wires on the...
    53 replies | 1257 view(s)
  • falter's Avatar
    November 17th, 2017, 03:35 PM
    Curious.. how rare are MK14s? I saw an auction for one a year or two ago that went to 1000 pounds.
    53 replies | 10000 view(s)
  • falter's Avatar
    November 17th, 2017, 01:27 PM
    falter replied to a thread Nascom in Other
    As far as I can tell yes, they go to the backplane. I'm not seeing yet though how the nascom itself gets power.. is that from that connector to the...
    53 replies | 1257 view(s)
  • falter's Avatar
    November 17th, 2017, 11:58 AM
    falter replied to a thread Nascom in Other
    Thanks Dave! Yes the wiring colors to me appear to follow standard Nascom practice. Only the one transformer is wired to the regulator board (the...
    53 replies | 1257 view(s)
  • falter's Avatar
    November 17th, 2017, 10:34 AM
    falter replied to a thread Nascom in Other
    I'm hoping to get a bit of help understanding this. I'm trying to figure out the power supply on this Nascom and why it has three transformers. ...
    53 replies | 1257 view(s)
  • falter's Avatar
    November 16th, 2017, 09:03 AM
    falter replied to a thread Nascom in Other
    Yeah.. I'm not sure if I overpaid or not... there was a Nascom 2 that went just before it for 500ish pounds also. In my case, I had a bidder with 5...
    53 replies | 1257 view(s)
  • falter's Avatar
    November 15th, 2017, 10:54 PM
    I tried Cannon Fodder, Castlevania, and a couple others. So far no takers.
    9 replies | 173 view(s)
  • falter's Avatar
    November 15th, 2017, 10:12 PM
    falter replied to a thread Nascom in Other
    I spent a bit of time untangling the Nascom boards and laying them out somewhat nicely. I did a short video. I apologize for my awful narration and...
    53 replies | 1257 view(s)
  • falter's Avatar
    November 15th, 2017, 09:50 PM
    It says I have 303,000 bytes free roughly with the card in.
    9 replies | 173 view(s)
  • falter's Avatar
    November 15th, 2017, 08:14 PM
    I found part of the problem.. it was a Kickstart 1.0 disk. I created a 1.3 disk and was able to get into Workbench 1.3. But game disks still do not...
    9 replies | 173 view(s)
  • falter's Avatar
    November 15th, 2017, 06:27 PM
    Borrowed a floppy out of my parts A500.. known to be good.. nope.. doesn't work. Same thing.. boots part way on the WB disk and then comes up with a...
    9 replies | 173 view(s)
  • falter's Avatar
    November 15th, 2017, 06:19 PM
    Tried a Workbench 1.3 disk.. nope.. won't load that either. Tried it with and without the RAM cart installed. Going to try changing floppies.
    9 replies | 173 view(s)
  • falter's Avatar
    November 15th, 2017, 04:34 PM
    So I've got this cobbled-together A1000 going now for the most part. I thought I'd try a few game disks I know were from around the A1000's...
    9 replies | 173 view(s)
  • falter's Avatar
    November 15th, 2017, 10:12 AM
    falter replied to a thread Nascom in Other
    Thanks and I appreciate your optimism! I'm not even sure where to begin.. because of all the different wire connections moving this thing around and...
    53 replies | 1257 view(s)
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About falter
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Vancouver, BC

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The Ebay Follies

by falter on June 25th, 2017 at 11:09 AM
All hail the $3000 Apple II+!

http://www.ebay.com/itm/142424958928
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