Envelope-to: craig@sbc-85.com
Delivery-date: Mon, 07 Nov 2022 16:42:04 -0600
Subject: Re: K2FDOS & MBM
To: craig@sbc-85.com
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From: denverh <denverh2000@gmail.com>
Message-ID: <96f9fdf8-b58e-4d6d-16c2-d8d77acfc137@gmail.com>
Date: Mon, 7 Nov 2022 16:41:48 -0600
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craig@sbc-85.com wrote:
> Hi Denver,
>
> I will look at your pdf and compare to the copy I made from the book I got through interlibrary loan and see if yours turned out any better than mine.
I sent an email to the scanning company who claims that the code 
sections in the MS Word version look fine, but they also sent a plain 
text file.  In that file I see a lot of ^Ms within many of the lines of 
code, so that would explain a lot of the weird results. But there are 
also sections where it looks like items from each field of a group of 
lines was printed on separate lines.  So I see a half dozen lines of 
field 1, then a half dozen lines of field two, etc.  And the number of 
original lines is inconsistent, so putting that back the way it's 
supposed to be would be a real challenge. The ^Ms might be manageable 
though.  I'll have to spend some more time looking at that.
>
> I suspect it is impossible to get the leadless carrier for the bubbles other than harvesting them from some dead bubble boards.  my original bubble board uses the leadless and I know I made another version that used the pinned version since those are the bubbles more readily available.  I am certain I laid out the universal board but I cannot see that I ever had them made or tested.
I have a bunch of leadless modules, but I don't remember any longer 
where they came from.  Could have been from dead boards, or perhaps 
spares that were getting thrown out.  At any rate, it would be nice to 
be able to use any of them that turn out to actually be usable. Do you 
think an adapter would work?  A small board with the leadless socket on 
the front and pins on the back to plug in where the leaded module 
would.  That might be the easiest approach.  After I get the parts I 
need and build the SBC-85 board I have, I'll see if I can make some kind 
of adapter.  If that doesn't work then I guess I'll have to go shopping 
for some leaded modules.
>
> getting your bubble board to pass the test function is a milestone.  do you have a bubble reseed module board? the ones I made are copied from the intel schematic, but I have not needed to use one to reseed a module so I can not claim that they work OK.  same for the dummy module.
Well, I should have the ones that came with the two BPK boards, and I 
probably put them someplace safe where I could easily find them again.  
But now I can't.  So I'll have to use your design.  But they seem pretty 
simple, so I expect it will work.
>
> keep me posted.  I am still playing with my intellect 8 reproduction system so it will be a while before I move on to the next project.
I know what you mean.  There's never any shortage of projects, fortunately.

Thanks,

Denver