Rockwell PPS-4 documents needed. MM7X stuff

Here is a list of PPS-4 documents as of June, 1974

PPS-4 DOCUMENTATION (from 29003N11: PPS-4 Basic Devices, Data Sheet, Page 27)

The PPS is supported by a complete and comprehensive set of documents. These documents are continually updated to incorporate additional data and/or reflect new capabilities or techniques.

The supporting documents are listed below:

TITLE DOCUMENT NO.

John :-#)#

That one I had found, it has a compilation of some PPS-4 and PPS4-2 stuff.

That document is part number 11660N40 Rv2, Sept 1975. I have a better first page and your copy is cleaner inside. I've combined them and left them in my ftp archive so you can download it if you wish. There may be others of use too.

ftp://ftp.flippers.com/TTL/TestEquipment/RockWell_PPS4_Datasheets/

John :-#)#

Well, I can read low quality text, but I read faster if quality is better. Sometimes it is hard to decide if there is a speck or a dot (or comma, apostrophe etc) on a page. And if you scan at larger quantity you probably do not want to proofread each page, so either you have generous margin for possible disturbances or you risk badly scanned pages.

Other thing is OCR: it seem to work quite well with actual text (as opposed to mixture containing also figures and formula) when scan quality is high enough. OCR is valuable if only to do searches. Scanning at low/medium quality throws out information that is hard or impossible to restore.

There's OCR, and there's OCR.

I was having the devil of a time getting pdf scans with searcheable text. Blaming scanner and source - till I upgraded the scanner software. Voila !

RL

With text font variations on the same page, or imbedded images from other sources, like newspaper articles. I found I had to manually bury plain text beneath an image of the reproduction. Very time consuming.

RL

The best bet for preservation is probably to 'get it out there', by making it available from as many independant sources as possible, even if it means that some end up behind a pay wall.

The internet archive is good at preserving smaller files, so big ones should be avoided. Often, they will only preserve a link to a (vanished) location.

A meaningful, searchable and sortable title is also helpful, at the earliest possible stages of file creation. Few will ever be able to claim a DOI or ISBN reference.

RL