So who could afford Brush paper? I had hundreds of feet of adding machine paper (cheap!)
If your fingers ain't purple, you ain't doin' science... Don Chuck Harris > It only appeared that way if you were using the wrong paper for the > chart recorder. Those that had needles that moved in an arc also had > chart paper that was ruled using lines in the "T" axis, and arcs in > the "X" axis. > > -Chuck Harris > > Max Robinson wrote: >> The issue of the recording stylus apparently moving backward along the time >> axis >> shouldn't be a mystery to anyone who remembers the old Brush (brand name) >> galvanic >> chart recorders. The pen tip moved in an arc rather than rectilinear and >> for slow >> paper movement the graph appeared to move backward in time. I have no idea >> exactly >> how virtual stylus works in decoding these recordings but it seems possible >> that they >> could account for the recording stylus being moved in an arc rather than a >> straight >> line. >> >> Regards. >> >> Max. K 4 O DS. > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > > -- "The power of accurate observation is commonly called cynicism by those who have not got it." -George Bernard Shaw Dr. Don Latham AJ7LL Six Mile Systems LLC 17850 Six Mile Road Huson, MT, 59846 mail: POBox 404 Frenchtown MT 59834-0404 VOX 406-626-4304 Skype: buffler2 www.lightningforensics.com www.sixmilesystems.com _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.