Vintage RCA CDP1802CD Microprocessor CPU Ceramic COSMAC 1802 USA 70's date code. Condition is "New, tested working". It has been tested for all functions in a professional tester and works 100%, check photo above. The tester does not come with this, only the ic. Shipped with USPS First Class.  I believe this to be unused, as it came in a factory tube with others with the same date code.  The legs look perfect so I am saying new on this part, but judge for yourself from the photos. It is my understanding that this is a date code from the 70's. It is backed with a 30 day warranty.  These are all USA stocked parts that I own, we do not mess around with Chinese junk.  We can combine shipping as well.