The history of development of HP 34401a

[MrYakimovYA]

HP archives and Tektronix manuals are still around, read and referenced quite often in this forum.

A collection of links to find most of them for free:
https://www.eevblog.com/forum/projects/found-a-goldmine-looking-for-more-treasures-(hp-journal-and-alike)/

Hi RoGeorge,
that's amazing! I'm going to closely look at every link listed in that thread! Thank you!!!

[RoGeorge]

Glad you find those interesting.  Many are very well written and still actual.  Other are full nostalgia.
Either way, it's a lot to enjoy reading for years.