Others I'm having issues as it appears
manufacturer's have used the same
number various times; often times locating on the web is a problem even
finding the number...
Major question is : 1) Is there a list of somewhere that I can use to
identify the chip manufacturer's logo? Some of these chips are from the
70's. "
I haev foudn that entring the number of an unknown IC into
datasheetarchive (
http://www.datasheetarchive.com/) will often fidnm a
datasheet if it's not a custom part. Not always (I've foudn a few ICs
that aren't there). but it's certainly worth a try, and they do include a
lot of older devices.
-tony