Hi Ed I have a Keithley 610B that could benefit from a solid state front end. Where can I get more details of your 417 conversion. Lou
On Wed, Jul 1, 2020 at 1:14 AM ed breya <[email protected]> wrote: > I just converted my Keithley 417 to a solid-state front end, with good > results so far. This is my last electrometer that had a 5886 tube front > end, so I'll be getting rid of my maintenance stock of these tubes soon. > If anyone needs 5886s for maintenance of old Keithley and other gear > while keeping them in original stock condition, let me know. > > So far it looks like I'm done with tubes for these applications. As the > new design is refined, I'll put up info if anyone is interested in > possible upgrades to the old gear. The new setup is looking good, with > only about 1-2 fA bias current at room temp, about ten times better than > the original spec. > > Some background is here: > > https://funwithtubes.groups.io/g/main/message/65994 > > Ed > > _______________________________________________ > volt-nuts mailing list -- [email protected] > To unsubscribe, go to > http://lists.febo.com/mailman/listinfo/volt-nuts_lists.febo.com > and follow the instructions there. > _______________________________________________ volt-nuts mailing list -- [email protected] To unsubscribe, go to http://lists.febo.com/mailman/listinfo/volt-nuts_lists.febo.com and follow the instructions there.
