The 19MB version available for download on https://www.web8201.net is a reduced-size (and de-skewed) version of the original 69MB scan; this reduction was made to ease downloads for users on low-bandwidth or metered connections at the time.
I do still have the original which I think is likely the same as the one being discussed here. When I look at them side by side I'm not seeing really difference that matters to the eye, but I certainly don't mind making both flavors available on the site. On Sat, Oct 10, 2026 at 12:30 PM B9 <[email protected]> wrote: > Agreed. It shouldn't be the only place it is kept, but archive.org is > necessary since so many personal sites have disappeared suddenly over the > years. > > The two versions of the Technical Notes I knew about before were clearly > from the same scan as they cut off the same text. They differed greatly > visually, but neither was better quality. The web8201 version was very low > resolution while the 1000bit version had 1-bit color. > > I suspected they both were reduced size versions of some scan I couldn't > find online. That's why it occurred to me to try averaging them together to > get something more reasonable. > > Since Stephen's file is so much larger, I wonder if it could be the lost > version? > > --b9 > > > > > > On October 10, 2026 5:40:05 AM PDT, [email protected] wrote: > >> Hi, >> >> >> >> Put it up on Archive.org so everybody in the world can find it and have >> access to it. >> >> >> >> Every manual for everything vintage needs to be added to Archive.org. >> >> >> >> >> >> >> >> >> >> >> ============================================================================================== >> C U L8r, °|° Walt Perko °|° "Kids ... teach them the good >> stuff, and they still learn the bad stuff on their own." >> >> http://www.R2Pv1.com/ <http://www.r2pv1.com/> *RoboGuts™ Intelligent >> content for 3D printing making S.T.E.A.M. education better, easier and more >> affordable * >> >> >> >> Experiments to learn how to use various Electronic Components, Structured >> Computer Programming, Phonemes for Speech &Song in any language, and Art. >> >> >> "The World Needs a New Economic Model" >> >> ============================================================================================== >> >> [image: BillyBotAvatar-2centsStamp-c] >> >> Sent from the Cyber7 >> >> >> >> >> >> *From:* M100 <[email protected]> *On Behalf Of *Stephen >> Adolph >> *Sent:* Saturday, October 10, 2026 4:13 AM >> *To:* [email protected] >> *Subject:* Re: [M100] NEC PC-8201A technical reference >> >> >> >> I have a copy of PC8200_TechNotes.pdf. >> >> >> >> where can I send it? 69MB >> >> >> >> On Sat, Oct 10, 2026 at 12:33 AM B 9 <[email protected]> wrote: >> >> The Technical Manual - First Edition exists online >> <https://www.web8201.net/Files/LIBRARY_web8201/NEC8201A-TechRef.pdf> and >> I believe it is what John needs. but the scan is spotty in places and the >> low resolution is particularly noticeable on diagrams, such as page 238. >> >> >> >> The Service Manual also exists >> <https://web8201.net/default.asp?content=/Files/LIBRARY_web8201/NEC8201A-SvcManual.pdf>. >> I haven't studied it thoroughly. It does have fold-out diagrams, not at the >> resolution I would have preferred, but I think it is probably legible >> enough. >> >> >> >> Now, if we could just find someone with the Technical Notes. There was a >> person named Curtis McCain who had a copy over a decade ago and I had >> mistakenly thought you (Kurt McCullum) might be the same person. (Sorry!) >> >> >> >> —b9 >> >> >> >> >> >> On Fri, Oct 9, 2026 at 9:15 PM Kurt McCullum <[email protected]> wrote: >> >> Here is what I have in my library. >> >> >> >> PC-8201A Technical Manual - First Edition Mar 15th 1984 - This is a clean >> photocopy with two pages per 8 1/2x11 sheet. There are 257 pages total. I >> checked pages 99, 117 and 119. They are clean pages. >> >> >> >> PC-8201 Personal Computer Service Manual 1983 (PTS-238). I have two >> copies of this one. It's huge with fold out diagrams. >> >> >> >> If this has already been scanned then I'll just put it back on the shelf, >> but if either of these is needed I will scan them. >> >> >> >> Kurt >> >>
