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Old 22nd Jun 2020, 8:22 pm   #47
Timbucus
Octode
 
Join Date: Mar 2019
Location: Barry, Vale of Glamorgan, Wales, UK.
Posts: 1,364
Default Re: SC/MP timing and microcode information

Quote:
Originally Posted by Slothie View Post
... Looking at the legs of the chips I would imagine they are equipment pulls because they seem to have traces of solder on the legs - perhaps they were some kind of second source rather than original NS chips.
...
It is documented that there were never any second source suppliers although they were made all over the place according to my NOS tube - so it is likely variations in plant marking?
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