HP-75 RAM expansion?

[rprosperi]

(04-21-2017 01:24 PM)Martin Hepperle Wrote:  It does not show up in the table of contents because it is disguised a letter from a reader.

Yes, this is quite frustrating when searching PPC/CHHU, and to a lesser extent Datafile, issues for old articles that one partially remembers. Some very significant 'articles' appeared only in the Letters or NOP (bugs/errors in past issues) columns, and generally were not included in the contents. Some examples include the HP-71 Disassembler, HP patches for the FORTH/Assembler and FORTH/41 Translator ROMs, and some key LEX files.

Though frustratingly tedious, a page-by-page review is needed to find many such items, though the reward is one often finds other jewels tucked neatly away in the same places.