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PostPosted: Fri May 19, 2017 8:03 pm 
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Breadboard is a generic term for a blank board with contacts or traces used for laying out boards manually.
I couldn't tell from my phone but on a large screen it looks like most or all of these are trace design, or more commonly trace boards. As opposed to through hole design which have holes all the way through.
If you can post clear pictures of the tops of what you want to look up I can run the numbers for you. My database goes back quite a bit further than most online resources since it uses old product catalogues and guides as well.


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File comment: Based on the bottom board and age; guessing nickel tin traces.
Clipboard02.png
Clipboard02.png [ 220.58 KiB | Viewed 7331 times ]

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PostPosted: Fri May 19, 2017 8:40 pm 

Joined: Wed Mar 08, 2017 11:25 am
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On the board on the left of your picture. the top left chip reads:
8636386
IBM 22
1 8427 7944


chip below it reads:
6820718
IBM 22
1 8419 6562

See if that does anything.


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PostPosted: Fri May 19, 2017 10:50 pm 
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1560-00-863-6386
Running scan. So far I've got a half dozen cross references but not the specific part yet.
Looks to be some sort of text or print controller. But guessing till the scan is done
Don't give up. Database is a little over 3TB of text now so takes a few hours to pull every reference then I can sort it out. And o just noticed your reply at 2130CDT

As I typed this just got 2 more "prnt srv" and mem C

I'll be back.

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PostPosted: Sat May 20, 2017 8:33 pm 

Joined: Wed Mar 08, 2017 11:25 am
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Pulled apart the 35291 2 machines I got and some keyboards. All telco heavy it looks like. The backplanes for the 5360 are solid full of pins and thick. The keyboard board looks to full of gold lines also. Is IBM 6 a telco also, the green one?


Attachments:
File comment: non-system 36 board
ibm 6.jpg
ibm 6.jpg [ 193.08 KiB | Viewed 7319 times ]
File comment: 5360 backplanes
ibm 5 backplane.jpg
ibm 5 backplane.jpg [ 203.82 KiB | Viewed 7319 times ]
ibm 4.jpg
ibm 4.jpg [ 167.93 KiB | Viewed 7319 times ]
ibm 3.jpg
ibm 3.jpg [ 160.42 KiB | Viewed 7319 times ]
ibm 2.jpg
ibm 2.jpg [ 150.62 KiB | Viewed 7319 times ]
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PostPosted: Sat May 20, 2017 9:29 pm 
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Didn't forget, just haven't been home yet

On to the new post

Telco with ICs left in

Telco (possibly peg board bump) if gold backplane (possibly telco bump) if nickel

Peripheral

Telco

Aluminium emblem. :)

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PostPosted: Sat May 20, 2017 11:19 pm 

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The 3 board picture is all the same boards. Just front/back. They are the 3 main back boards all the circuit boards slid onto.


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PostPosted: Sat May 20, 2017 11:23 pm 

Joined: Wed Mar 08, 2017 11:25 am
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zoomed in shot of the 3 large boards. Pins sticking out of both sides.


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ibm 7.png
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PostPosted: Sun May 21, 2017 12:10 am 
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I see. Those are a little different than the ones I've seen; having plastic guides on the board.
If the pins are gold we're looking at telco and possibly peg board
If nickel were at backplane and possibly an upgrade to telco.
(Given in this shot they look grey rather than gold)

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PostPosted: Sun May 21, 2017 4:16 pm 
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mrgofast27 wrote:
On the board on the left of your picture. the top left chip reads:
8636386
IBM 22
1 8427 7944


chip below it reads:
6820718
IBM 22
1 8419 6562

See if that does anything.

I've come up with 18 cross references to various combinations of those IDs. All pointing to character, print, and output. Nothing specific for them though.
The black chips are all rom or low capacity memory. Nothing really special in these.
But the metal capped chips, I'm almost, certain are memory.
Probably track ram or bubble memory. Either way this is where some extra effort can pay off well. Seeing these boards are all pad layout you could easily do a reflow and harvest the chips.
As is those boards are telco.
Remove the ICs you'll probably get peripheral for the boards but as I said before this design of memory gets some nice payouts on ebay DOA.
And even if you don't want to ebay them they will all get at least IC rate.
I sent a handful of bubble memory to Chris once a while back just to see what they'd do with it. And he gave me telco for the memory. I haven't sent them since because I get a dollar a chip on ebay for them.
But you may want to try ebaying one boards worth and see if it's worth the ebay effort for you.

Email Chris a closeup of the memory as well and see what he'd take it as today when loose.

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PostPosted: Mon May 22, 2017 4:32 pm 

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boards are good for Telco. Said to basically just leave them as is.


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