[volt-nuts] keithley 2015 (2000) voltage reference SL40057

Fabio Eboli fabioeb at quipo.it
Sun May 27 10:38:57 UTC 2012

Thank you very much Andreas for the info.

Fabio Eboli.

Andreas Jahn <Andreas_-_Jahn at t-online.de> ha scritto:

> Hello Fabio,
> since National does not longer produce the LM399, LT is the only  
> manufacturer where you can get them.
> In a german forum they state that the SL40057 IC-527 is used at  
> least in a keithley 2000 (6,5 Digit).
> From my collected information of DMMs I know the following:
> Keithley 2000, 2001 and 2010 use the LM399
> Keithley 2002 uses the LTZ1000A
> with best regards
> Andreas

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