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silice
Joined: 03 Mar 2009
Posts: 2178
Location: France
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 Posted: Sun Dec 06, 2009 2:28 pm Post subject: French core memory |
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Hi
This is a French core memory  |
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smithy
Joined: 27 Apr 2008
Posts: 2906
Location: Sydney, Australia
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| Posted: Sun Dec 06, 2009 5:02 pm Post subject: |
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Core memory is very cool...so much work for such a small result (although at the time it was big result)
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CPUShack
Joined: 16 Jun 2003
Posts: 34259
Location: State of Jefferson, USA
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hugo929
Joined: 27 Oct 2006
Posts: 6163
Location: China
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| Posted: Sun Dec 06, 2009 6:53 pm Post subject: |
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cool looking mems! i am always wanting to get one cheap from ebya but found it is really difficult
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UMMR
Joined: 23 Aug 2007
Posts: 381
Location: Udine, ITALY
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| Posted: Tue Dec 08, 2009 5:41 am Post subject: |
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Hi,
Your 1st picture is IMHO a very nice macro shot.
Excellent work!!!
Paolo |
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silice
Joined: 03 Mar 2009
Posts: 2178
Location: France
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| Posted: Tue Dec 08, 2009 6:49 am Post subject: |
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Hi Paolo,
Photo made with a old Nikon coolpix 4500 but always a good DC
Pascal |
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johnorun
Joined: 04 Apr 2008
Posts: 3364
Location: Chicago, IL- US
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| Posted: Wed Dec 09, 2009 12:59 am Post subject: |
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Thanks Silice.
Your nice Core board made me look closer at an old board I got in a batch of nice Burroughs mainframe boards I bought just after joining this group.
This Dataram board was also covered by a plastic panel, so I opened it up and Wallah! -- a large 16Kx16 Core memory from 1977.
It doesn't have any Ferrite cores and the wires are woven like a fair maidens hair.  Looks like years of weaving work!
How does this work without the Ferrite cores?
Is this board worth much?
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CPUShack
Joined: 16 Jun 2003
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Location: State of Jefferson, USA
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johnorun
Joined: 04 Apr 2008
Posts: 3364
Location: Chicago, IL- US
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| Posted: Wed Dec 09, 2009 1:21 am Post subject: |
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| CPUShack wrote: | | they are there, just look closer, VERY small |
Hmmm. I can see or feel nothing but smooth wire mat.
Could Ferrite cores be made microscopic in size?? 
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CPUShack
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johnorun
Joined: 04 Apr 2008
Posts: 3364
Location: Chicago, IL- US
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| Posted: Wed Dec 09, 2009 2:21 am Post subject: |
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My little Olympus cam won't magnify enough to show anything... 
Maybe Santa will bring me a microscope like windmillers...hehe.
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CPUShack
Joined: 16 Jun 2003
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UMMR
Joined: 23 Aug 2007
Posts: 381
Location: Udine, ITALY
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| Posted: Wed Dec 09, 2009 10:30 am Post subject: |
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| silice wrote: | Hi Paolo,
Photo made with a old Nikon coolpix 4500 but always a good DC
Pascal |
Hi Pascal,
I'm happy to know You are a Nikon user!
I have an old but great (IMHO) Coolpix 5000: the macro and closeup focusing capabilities of these cameras are impressive even for today's standards.
My only complaint is for the noise amount, acceptable only at low ISO (100 and 200).
Excellent pictures indeed.
Paolo |
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johnorun
Joined: 04 Apr 2008
Posts: 3364
Location: Chicago, IL- US
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| Posted: Wed Dec 09, 2009 11:52 pm Post subject: |
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| CPUShack wrote: | | your Olympus have a macro mode (usually has a flower symbol)? |
The flower symbol and super close-up settings don't give enough magnification... 
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amstrad84
Joined: 30 Dec 2009
Posts: 137
Location: Prague, Czechia
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| Posted: Mon Mar 29, 2010 3:40 pm Post subject: |
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The nostalgy, very excellent pictures the ferrites...
I remember for the first hard time with system 5800 Singer, 4k Feritte core and punched card. Ufff. 
Thanks for Ferrite Owners, it was nice. |
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