NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Sextant calibration. Re: Coordinates on Cook's maps
From: Jim Martin
Date: 2007 Apr 24, 16:24 -0700
From: Jim Martin
Date: 2007 Apr 24, 16:24 -0700
Alex, My Alpha 40(Chinese)has stamped on the correction certificate "This instrument is free of errors for practical use" Jim Martin. On Apr 23, 4:57 am, Alexandre E Eremenkowrote: > On Sat, 21 Apr 2007, Gary J. LaPook wrote: > > My Tamaya MS-833 serial number 63890 which I bought new in 1981 has all > > zeros. > > Which confirms what I said about the results of my > e-bay research. > > What else, after 1940, except some Tamayas, > has a certificate > with all zeros? Can the list members give me ONE example? > C. Plath and > Cassens Plath are > not considered because they DO NOT provide a certificate > with a list of errors. > > I have a wild guess: this depends on whether > the manufacturer has testing equipment or not:-) > Freiberger and SNO do have the equipment (I know!), > so they provide certificates with errors listed. > They are usually not all zeros. > > Alex. --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to NavList@fer3.com To , send email to NavList-@fer3.com -~----------~----~----~----~------~----~------~--~---