National Semiconductor, Unitrode, Hewlett Packard data books.
National Semiconductor, Update #4, #7 and #8 are in good condition. All have a little dirt on the top edges and initials, see photo #4.
Unitrode PIN Diode designer's Handbook and catalog (PD-500B) in good condition. It has a little dirt on the top edges and initials, see photo #5.
Hewlett Packard Optoelectronics 1984, is in good condition. It has dirt on the top and side edges, see photos #6, 7. Small marks on the front cover, see photo #3.
All have a slight musty smell.
If you have any questions or want more photos, please send me a message. Thanks for looking.
If you want multiple items, send me a note and I will bundle them with a discount and save on shipping.