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iguana
Joined: 24 Apr 2007
Posts: 2456
Location: Ottawa, Canada
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 Posted: Thu Sep 18, 2014 5:15 am Post subject: soviet Silicon and Germanium |
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Hi guys,
Good Morning Steve 
I've visited "Quasar" here in Kiev (where the very first soviet CPU was manufactured in 1977) hoping to find/scrounge some chips/wafers in a forgotten basement
Not too successfully as for chips, but...
I've got these two pieces of silicon.
Aren't they lovely?
The cylinder has diameter of one inch exactly
Is it for 1" wafers?
And what is the cube for ?
I don't know why, but the cube is much heavier/denser than the cylinder.
Why ?
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Last edited by iguana on Fri Sep 19, 2014 2:30 am; edited 1 time in total |
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Komz
Joined: 02 Feb 2003
Posts: 370
Location: PL
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iguana
Joined: 24 Apr 2007
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Vlasta
Joined: 15 May 2012
Posts: 2565
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| Posted: Fri Sep 19, 2014 1:40 am Post subject: |
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What a nice couple of objects - MAYBE the block is not silicon hence heavier? I often dream that I can find the Intel factory in Hong Kong and in a dark store room find some old C4004's in a nice NOS box...... does anyone know where the address of that factory would have been?
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best rgds.
Steve |
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iguana
Joined: 24 Apr 2007
Posts: 2456
Location: Ottawa, Canada
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| Posted: Fri Sep 19, 2014 2:04 am Post subject: |
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| Vlasta wrote: | | MAYBE the block is not silicon hence heavier? |
Bingo!
the bloc's sizes approximately are 2,8x3,4x3,6 cm = 34,272 cc
and it weights 182 g
the density is about 5,31
where is my handbook on the Physics ???
so... it's a bloc of pure Germanium!
Thanks!
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My Want List: http://www.cpu-world.com/forum/viewtopic.php?t=22729
Soviet chips info and my own collection: www.cpu-ukraine.com |
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Vlasta
Joined: 15 May 2012
Posts: 2565
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| Posted: Fri Sep 19, 2014 2:06 am Post subject: |
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| iguana wrote: | | Vlasta wrote: | | MAYBE the block is not silicon hence heavier? |
Bingo!
the bloc's sizes approximately are 2,8x3,4x3,6 cm = 34,272 cc
and it weights 182 g
the density is about 5,31
where is my handbook on the Physics ???
so... it's a bloc of pure Germanium!
Thanks! |
WOW - now that is a valuable item indeed!!
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best rgds.
Steve |
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iguana
Joined: 24 Apr 2007
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Vlasta
Joined: 15 May 2012
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| Posted: Fri Sep 19, 2014 2:43 am Post subject: |
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Lucky find.
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best rgds.
Steve |
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