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Vlasta
Joined: 15 May 2012
Posts: 2565
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 Posted: Thu Oct 30, 2014 11:49 pm Post subject: My latest thing - DEC CPU from 1976 |
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Bought on eBay - paid too much (I can't help myself) but almost certainly a CPU!!
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best rgds.
Steve |
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monoxrom
Joined: 05 Sep 2008
Posts: 357
Location: Ukraine. Ivano-Frankivsk
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| Posted: Fri Oct 31, 2014 4:35 am Post subject: |
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nice!
But how you know this is CPUs or not?
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retro-pc.blogspot.com - my blog |
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Birdman.
Joined: 13 Nov 2012
Posts: 833
Location: Finland
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| Posted: Fri Oct 31, 2014 4:38 am Post subject: |
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Die shots of all DEC CPUs should be at http://simh.trailing-edge.com/dsarchive.html and LSI-11 control chip is the only almost square one among older chips. That 1976 is also too early for others than LSI-11 and this one looks like it but a bit more resolution is needed to confirm. Anyway, in this case you've found a really nice wafer. Unfortunately, I haven't got any LSI-11 yet for die shots.
Last edited by Birdman. on Fri Oct 31, 2014 4:42 am; edited 1 time in total |
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Vlasta
Joined: 15 May 2012
Posts: 2565
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| Posted: Fri Oct 31, 2014 4:41 am Post subject: |
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| monoxrom wrote: | nice!
But how you know this is CPUs or not? |
cpushack tells me they look like CPU - my precious is with him in USA for the time being until my next shipment......
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best rgds.
Steve |
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gshv
Joined: 01 Feb 2003
Posts: 7898
Location: Fairfax, VA USA
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| Posted: Sat Nov 01, 2014 4:11 pm Post subject: |
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Cool paperweight! Is it this one? -
http://www.ebay.com/itm/371153324300
I guess, the auction picture was taken from an angle, and the paperweight looks much better there.
Gennadiy |
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CPUShack
Joined: 16 Jun 2003
Posts: 34259
Location: State of Jefferson, USA
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Vlasta
Joined: 15 May 2012
Posts: 2565
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| Posted: Sun Nov 02, 2014 12:32 am Post subject: |
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And I paid way too much but I had to have it!!!
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best rgds.
Steve |
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