Scanning incomplete and updated documents

J. David Bryan jdbryan at
Fri Apr 17 01:37:59 CDT 2020

On Thursday, April 16, 2020 at 23:18, Frank McConnell wrote:

> Sometimes I have come across shrink-wrapped manuals and later updates,
> and scanned them as found.  I wouldn´t want to deny other people the
> opportunity to apply updates to manuals, you know? 

Oh yes, especially the ones that would say, "Insert the six paragraphs 
below between the third and fourth lines of page 23."  :-)

I used to despise HP when they would send updates that consisted of 
instructions to modify existing manual pages instead of sending replacement 
pages.  I recall one update, maybe for the HP 64000 logic station mainframe 
service manual, that instructed me to change a dozen or so schematics -- 
simple things, like "replace feedback resistor R23 with the active filter 
circuit shown below."  That one got stuck in the front of the outdated 
manual, as I just couldn't bring myself to butcher the pages as they 

When it came to manual updates, the Logic Systems Division was aptly named.

                                      -- Dave

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