I'm not certain it's the same model, but the one I'm familiar with was in a Wamco (formica) case, maybe 10" x 12" x 8" with some colored binding posts. They has a little glass 'thermal convertor' about the size of a pecan. The rest of the box was precision resistors and high quality (Shallcross ?) switches.
There were a bunch of part-built ones surplused in the Boston area in the late 1970s. Internally they had plexi panels with 0.1% and .01% resistors, in decade values as I remember. If that's the puppy, I know nothing more. I still have some of the parts put away somewhere. I never had any paperwork AFAIK. They may have been affiliated with Weston. If this is not the puppy, never mind. :) -John ============= > Does anyone know anything about this calibrator? > > Access to schematics or users manual? > > If you've no documentation on the 320, any 300 series calibrator from > Rotek would help. If you have no documentation but know or worked > with them, that would help; What were their quirks? Their basic > specs? Do you have an overview of what circuit methods they used to > provide stable output? Did they use any unobtanium? > > Thanks a bunch. > > P.S. I emailed and contacted Rotek without success. All attempts to > email them bounce back, so I'm not sure they are still around despite > having a website up, but frozen dated 2002. > > Please reply privately to my email, as this may be considered off > topic for some listmembers. > > > > > > > > > > Sincerely, > > > > Marv > Philadelphia, PA > > _______________________________________________ > volt-nuts mailing list -- [email protected] > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/volt-nuts > and follow the instructions there. > > _______________________________________________ volt-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/volt-nuts and follow the instructions there.
