Thoughts on restricted distribution documents (Dec Professional 350)

Bjoren Davis bdweb at
Tue Sep 29 16:34:44 CDT 2020

If it helps, I bought a copy of the DEC Professional 350 Field 
Maintenance Print Set (MP-01394) on eBay a few months back.

I've scanned it but I've been waffling about where to post it. Scanned 
@600DPI with lossless compression it's huge: 1 GB.  Saved as an 
"optimized" PDF (with very little visible difference) it's 94 MB.

In the short term I've temporarily thrown up the optimized copy onto 
Google drive:

I'd love to be able to contribute this to something like bitsavers.


--Bjoren Davis

On 9/29/2020 4:48 PM, Paul Koning via cctalk wrote:
>> On Sep 29, 2020, at 4:29 PM, Chris Zach via cctalk <cctalk at> wrote:
>> Makes sense. Still it's uncompressed so pretty big. I'll need to work on cleaning up the scans a bit, then I'll put the Tiffs up for download/whatever. Just don't want a lot of copies, consider that pdf as a proof of concept to review.
> TIFF supports compression, in a number of different schemes.  LZW tends to work well for gray and RGB; the CCITT schemes are for bitonal (black/white bitmap).  All TIFF compressions are lossless so they are all safe for material of all types.
> Is what you posted the whole document you have, or are there others?  I was really hoping for the "CT bus manual".  I did see interesting stuff in this one, though; for example, the first documentation I've seen of the hard drive FORMAT command.
> 	paul

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