[Test-Equipment] HP 8405A Manual - Schematics -addendum

[Tod -MN]

Eric:

That sounds very interesting. I had not realized that such service might be
available. I am going check Kinko's locally to see if they will do it. If
so, I will substitute the commercially done scans for mine in the schematics
package and let people know about the update.

73, Tod

 

> -----Original Message-----
> From: test-equipment-bounces at mailman.qth.net 
> [mailto:test-equipment-bounces at mailman.qth.net] On Behalf Of 
> Eric Lemmon
> Sent: Sunday, June 21, 2009 10:13 AM
> To: 'Discussion of Electronic Test Equipment'
> Subject: Re: [Test-Equipment] HP 8405A Manual - Schematics -addendum
> 
> That method works okay in a copy machine that moves the 
> original across a fixed scan head.  It does not always work 
> very well in the more common copier that moves the scanner 
> bar or mirror beneath the stationary original.
> In the latter case, there are optical errors that exist at 
> the edges that make it difficult or impossible to line up 
> multiple scans, and this is most apparent in very detailed 
> schematic diagrams.
> 
> It is far better to take long foldout pages of a manual to a 
> commercial graphics house, where the entire sheet is scanned 
> in one pass into a PDF file.  My local graphics house charges 
> me only 17 cents per square foot for scanning, and can handle 
> pages that are up to five feet wide and more than 100 feet 
> long.  I'm not exaggerating- some electrical diagrams for an 
> airplane are intended to be put on a wall, so that an 
> engineer can follow each wire from beginning to end.  Once a 
> manual has been scanned so that each page is one PDF 
> document, the Adobe "snapshot tool" can be used to select 
> portions or details to print on standard-size paper.  Of 
> course, the great value of full-page scanning is that the 
> long pages can be printed in their original sizes by the same 
> graphics shop (and some Kinko's) that have a roll-feed 
> document printer.
> 
> 73, Eric Lemmon WB6FLY
>