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ST MOSTEK MK502X Calculator Chip CPU Vintage Silicon Wafer 4" MADE IN USA 100mm

malicirnik
(925)
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US $79.99
ApproximatelyAU $122.65
Condition:
not specified
“Exceptionally good condition - uber rare wafers in sealed packets. This one opened for auction.”
9 available5 sold
Breathe easy. Returns accepted.
People want this. 20 people are watching this.
Postage:
US $18.99 (approx. AU $29.12) Economy Shipping from Greater China.
International delivery of items may be subject to customs processing and additional charges.
International postage – items may be subject to customs processing depending on the item's customs value.
 
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Information
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• Delays from customs inspection.
• Import duties and taxes which buyers must pay.
• Brokerage fees payable at the point of delivery.
 
Your country's customs office can offer more details, or visit eBay's page on international trade.
Located in: North Point, Hong Kong
Delivery:
Estimated between Wed, 20 Aug and Tue, 30 Sep to 94104
Estimated delivery dates - opens in a new window or tab include seller's handling time, origin postcode, destination postcode and time of acceptance and will depend on the postage service selected and receipt of cleared paymentcleared payment - opens in a new window or tab. Delivery times may vary, especially during peak periods.
Returns:
14-day returns. Buyer pays for return postage. If you use an eBay postage label, it will be deducted from your refund amount.
Payments:
     Diners Club

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Seller assumes all responsibility for this listing.
eBay item number:124848655647
Last updated on 19 Jun, 2025 17:44:37 AESTView all revisionsView all revisions

Item specifics

Seller notes
“Exceptionally good condition - uber rare wafers in sealed packets. This one opened for auction.”
Compatible Brand
Texas Istruments
Brand
SGS Thomson
Type
CPU/Processor
Custom Bundle
No
MPN
MK502X
Country/Region of Manufacture
United States
Modified Item
No

Item description from the seller

About this seller

malicirnik

97.1% positive Feedback•943 items sold

Joined Feb 2004
Usually responds within 24 hours
Seller's other itemsContact

Detailed seller ratings

Average for the last 12 months
Accurate description
4.8
Reasonable postage costs
4.6
Postage speed
4.7
Communication
4.8

Seller feedback (579)

All ratings
Positive
Neutral
Negative
  • v***8 (320)- Feedback left by buyer.
    Past 6 months
    Verified purchase
    Great communication, item in excellent condition. Very good seller ⭐️⭐️⭐️⭐️⭐️
  • eBay automated feedback- Feedback left by buyer.
    Past month
    Order completed successfully—tracked and on time
  • t***c (698)- Feedback left by buyer.
    More than a year ago
    Verified purchase
    An interesting wafer for showcasing the early years of silicon design. Calculators were "The Item" at the dawn of the 1970s, before attention turned to the embedding of ALUs inside CPUs.
See all feedback

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