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Vintage Rare Large Sperry Univac 1219 Mk 152 Computer Core Memory Stack VTG
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Vintage Rare Large Sperry Univac 1219 Mk 152 Computer Core Memory Stack VTG
Price: US $290.00
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Vintage Rare Large Sperry Univac 1219 Mk 152 Computer Core Memory Stack VTG Description

Please read the description and view pictures of this sale carefully and thoroughly before making a purchase. We have described this item to the best of our knowledge including all the known and visible flaws. Please contact us with any questions in regards to this listing.Up for sale is a (1) Rare Vintage Large Univac Core Memory Stack. These were all pulled from Univac 1219 units. These are being sold for their collectors value. These units are approximately 3\" x 3\" x 3. This is the actual item you will receive. There is no visible damage to the corestack, but the the grate is missing. None of the core stack seems to have retained any damage. We have wiped these modules down, but the amount of dust trapped under the grate may vary slightly.From Wikipedia, \"The first UNIVAC 418-II was delivered in November 1964. It was available with 4,096 to 65,536 (18-bit) words of memory. Memory cycle time was reduced to 2 microseconds. The militarized version was called the UNIVAC 1219 (known as the \"Mk 152 Fire Control Computer.\") It was part of the Navy\'s Mk 76 missile fire control system, used to control the AN/SPG-55 radar system.\"From Wikipedia \"How Core Memory Works. The most common form of core memory, X/Y line coincident-current, used for the main memory of a computer, consists of a large number of small toroidal ferromagnetic ceramic ferrites (cores) held together in a grid structure (organized as a \"stack\" of layers called planes), with wires woven through the holes in the cores\' centers. In early systems there were four wires: X, Y, Sense, and Inhibit, but later cores combined the latter two wires into one Sense/Inhibit line. Each toroid stored one bit (a 0 or 1). One bit in each plane could be accessed in one cycle, so each machine word in an array of words was spread over a \"stack\" of planes. Each plane would manipulate one bit of a word in parallel, allowing the full word to be read or written in one cycle.\"Items in the pictures are the actual items you will receive. We do not use stock photos.
Additional items and accessories are NOT included unless specifically stated within the description of the listing.
If a power cord is used to power an item on in the picture, it is not necessarily included in the sale.
If an item is not seen in any of the pictures, more than likely it is NOT included.
If you are not satisfied with the item received for any reason, please contact us via messaging system or at [phone removed by ] to resolve the issue. We offer 14 day return policy so rest assured that the problem will be solved!

Shipping

The buyer is responsible for all shipping and handling fees and taxes. International buyers are responsible for all customs duties and taxes. If you are an international buyer it is likely that you will have to pay taxes when your item arrives. Please check your countries\' taxes before placing an order.For a shipping quote please click on \'s \"Shipping\" tab. We combine shipping, if you order multiple items simply send us an email through and we will update your invoice. We ship via UPS and USPS, we can also ship on your UPS account. We do not ship via Fedex. We do not ship via First Class Mail International. We will only ship via Priority or Express Mail International. We will not alter the invoice or send the item marked as a \"Gift\" to foreign countries.

Terms
  • ?a href=\"#\" style=\"text-decoration:none; color:#000; padding-left:10px;\">Most items sold by Potomac eScrap LLC are sold wth a 14 day warranty.
  • ?a href=\"#\" style=\"text-decoration:none; color:#000; padding-left:10px;\">Our warranty does not incliude return shipping.
  • ?a href=\"#\" style=\"text-decoration:none; color:#000; padding-left:10px;\">If an item was purchased in error a refund will be given minus the original shipping charges.
  • ?a href=\"#\" style=\"text-decoration:none; color:#000; padding-left:10px;\">All return shipping is paid for by the buyer.
  • ?a href=\"#\" style=\"text-decoration:none; color:#000; padding-left:10px;\">All sales are final.
  • ?a href=\"#\" style=\"text-decoration:none; color:#000; padding-left:10px;\">Payments is due within 4 business days from the end of the sale. will automatically file a non paying buyer case if you do not pay within 4 days.
  • ?a href=\"#\" style=\"text-decoration:none; color:#000; padding-left:10px;\">We accept paypal and CC?. does not allow seller? to accept mailed in payments(we can? even mention them here).
  • To pay with your visa, master, AM EX, or Discover card please give us a call at [phone removed by ].
About us

Potomac eScrap is a broker and recycler of surplus and scrap electronics. Our business serves the Washington DC, VA, MD area. We ship recycled electronics and processed scrap metal worldwide.

You may contact us at:Potomac eScrap LLC
7917 Wellingford Dr
Manassas, Virginia 20109

Phone - [phone removed by ]

Note: Potomac eScrap LLC does not accept liability for injury to either person or property caused by either use of misuse of any sold. The user accepts liability for any and all use of equipment sold by Potomac eScrap LLC.



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