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Full Version: HP Part Numbering and Marking (especially for HP-41C stuff)
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Does any one know the part numbering and marking scheme for HP?

Case in point would be the HP-41 Machine Design application pac. The HP sale flyers list it as HP 00041-15020, and this would be for the English language pac. This number is marked on the box of the English language pac.

I have two ROM's, both made in Singapore. Date code 2035 has the ROM marked HP 00041-15020. Date code 2303 has the ROM marked HP 00041-14010. Both catalog on the HP-41CX as "MACHINE 1A".

You can see a picture at: