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Windmiller
Joined: 24 Jun 2005
Posts: 1716
Location: Chapel Hill, NC
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 Posted: Tue Dec 18, 2007 7:31 pm Post subject: HP Chip |
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I came across this site and thought I would share it.
www.hpmuseum.org
Nice looking HP chip
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el_gecko
Joined: 25 May 2005
Posts: 1553
Location: Nice, France
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Chiefish
Joined: 23 Sep 2007
Posts: 2153
Location: Northwest N.J. U.S.A
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| Posted: Tue Dec 18, 2007 9:13 pm Post subject: |
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| Pretty interesting site, i like alot of the HP chips i have seen , i only have a few in my collection so far. Two are obviously HP chips the last one i had to do some digging to find out its an HP chip. |
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Windmiller
Joined: 24 Jun 2005
Posts: 1716
Location: Chapel Hill, NC
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| Posted: Wed Dec 19, 2007 6:23 am Post subject: |
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Nice chip Jerome!! |
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wepwawet
Joined: 18 Mar 2004
Posts: 3019
Location: Seligenstadt - Germany
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| Posted: Thu Dec 20, 2007 1:38 am Post subject: |
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Yupp, it's a very interesting source for early package technology.
Taake a look on the 98xx series:-)
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You may use the photos I have posted here under CC BY-NC-SA license. |
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hugo929
Joined: 27 Oct 2006
Posts: 6163
Location: China
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Elar
Joined: 16 Jul 2003
Posts: 746
Location: Tallinn, Estonia
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hugo929
Joined: 27 Oct 2006
Posts: 6163
Location: China
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Neon_WA
Joined: 08 Nov 2008
Posts: 7146
Location: Margaret River, West Australia
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tlccomp
Joined: 11 May 2006
Posts: 1212
Location: Southeast Wisconsin, USA
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| Posted: Fri Dec 19, 2008 12:29 pm Post subject: |
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I have these HP parts, not sure what they are or do. The 5061-3020 from 12-81 through 01-82 with the signatures on the back. Look's like something that ran through a testing procedure or an engineering department.
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The two most common elements on Earth are oxygen and stupidity. |
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Neon_WA
Joined: 08 Nov 2008
Posts: 7146
Location: Margaret River, West Australia
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el_gecko
Joined: 25 May 2005
Posts: 1553
Location: Nice, France
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| Posted: Fri Dec 19, 2008 7:24 pm Post subject: |
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| tlccomp wrote: | | I have these HP parts, not sure what they are or do. The 5061-3020 from 12-81 through 01-82 with the signatures on the back. Look's like something that ran through a testing procedure or an engineering department. |
 'love them.
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My microprocessor collection: The Gecko's CPU Library |
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iguana
Joined: 24 Apr 2007
Posts: 2456
Location: Ottawa, Canada
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Neon_WA
Joined: 08 Nov 2008
Posts: 7146
Location: Margaret River, West Australia
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| Posted: Sat Dec 20, 2008 3:58 am Post subject: |
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The 1818 HP part number is normally RAM, ROM or EPROM. 
i presume the chip with the lid off is marked 2048A, so the numbers would following each other and HP normally does this for ROMs or EPROMs on a board.
RAM on a HP board is normally the same part number or not in sequence.
as for the sticky tape.. maybe they UV eraseable 
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http://www.x86-guide.net/Neon-WA/en/collection.html |
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Elar
Joined: 16 Jul 2003
Posts: 746
Location: Tallinn, Estonia
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| Posted: Sat Dec 20, 2008 4:06 am Post subject: |
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That's probably a ROM module for HP 98xx desktop calculators.
Fits here:
Even black label has similar part number 11227 (or is it 11221) to this:
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but I have question.
