Greetings all.
I've been working on several 16555A LA cards (corrosion on the bottom) to use in a pair of 16702B mainframes
and I've noticed something that has me curious.? On the top of each board near the 100MHz oscillator, etched
on the board, is a model number.? Some are 16555-66505.? Some are16555-66503 (the older ones).? One has
a label placed over the second part of the number (after the dash) that says 66405 and one has a label over the
original 66503 that says 66505.? Most of the others are etched 16555-66505 but you can tell that at one time
there was a label over the second number and the adhesive is still there but the label has been removed.? Several of these
boards have a label on them indicating they may contain remanufactured parts.
I know it's probably trivial but I was wondering if anyone in the group might know what that number represents.
I am assuming age by the date code that is on the data bus connector.? Two of them came from a 16500C and are
dated '94.? Any thoughts?
Thanks.
