RARE MOS MCS6520 and MCS6530 matching pair Date Codes 0277 gold ceramic

Description

Very hard to find a pair with same date codes.  I used specialty jewelers cleaning tools to laboriously clean these.  I left the inside parts of the legs alone.  Untested and sold as-is, but fantastic condition and taken from a very well cared for PCB.  If you are looking for either piece separately, contact me and I can make a separate listing.