Andrea, I can comment on the Triax cabling in that the Pomona and others you see on ebay are not compatible for the Keithley units generally. I have a 617 electrometer that I acquired from the designer of it, and he told me that Keithley Sr made sure the triax design was unique; a Keithley designed 3-lug Triax BNC design. Then as you already are aware, there is the performance of the Keithley cable itself. I also was told to create a Faraday Shield 'box' with alligator clip leads, attached to the Triax chassis connector internally with solid wires (just used Cat-5 wire pieces) so that outside EM would not add to the noise level on low current measurements. That actually does make a huge difference and allow for extremely low voltage and current measurements with greater certainty. This instrument is a real pleasure to work with.
Russ On Thu, Nov 19, 2015 at 8:12 AM, Andrea Baldoni <[email protected]> wrote: > Hello. > > I will soon acquire a nVmeter, a current source and an electrometer made by > Keithley. They will come without any cable and manuals and in unknown > working > condition. > > One of the first steps is obtaining the cables. > I saw some of them for sale on Ebay, but I can roll my own, if it's > possible > to do it without recurring to poisonous cadmium solder and the like (for > the > nVmeter; the electrometer too will advantage from low EMF cables but maybe > it's > not so important, or not? More important would be the cable insulation and > triboelectricity). > > Someone already did it? What components (connectors, cable) do you suggest? > > Best regards, > Andrea Baldoni > _______________________________________________ > 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.
