I'll add my praise to KH customer service. It may be worth mentioning who helped you, I had the same issue with the MV106 voltage reference and contacted Joe Inglis at KH. FWIW, when I was researching the analog CR and MV model EDC/KH voltage references they all use a similar design, so worse case, any of the schematics can serve as a guide. I wouldn't be surprised if the E100 are made similarly. The are accurate [ >= spec sheet data] and, given their age, are now even more stable long term; they are decades old and proven to be very well made. They are designed simply with a lot of derated components most of which are not unobtanium, so any potential maintenance is not a major chore. Calibration is all analog pots, easy to do and very stable once done. IIRC great voltage reference better than 1uV resolution and << 30ppm/yr stability. At 04:27 PM 3/18/2013, John Lofgren wrote: >I had a similar experience with an old K-H function generator. I >just called them up and they e-mailed me a scan of the manual. A >thumbs-up from me, too. > >Other test equipment vendors should take note. > > >-John > >-----Original Message----- >From: volt-nuts-bounces@febo.com [mailto:volt-nuts-bounces@febo.com] >On Behalf Of cfo >Sent: Monday, March 18, 2013 3:21 PM >To: volt-nuts@febo.com >Subject: Re: [volt-nuts] Seek full Manual - EDC DC millivolt calibrator E100C > >On Sun, 17 Mar 2013 20:16:29 -0500, J. L. Trantham wrote: > > > CFO, > > > > Several months ago, I bought an EDC CR103 DC Current and Voltage > > Standard and ran into the same problem. > > > > I emailed Kron-Hite, asking if the manual was available, if so, how > > much, > > etc. The reply was an emailed .PDF complete manual, schematics and > > everything. > > > > You might try asking them if they still have the manual available, etc. > > Couldn't hurt. > > > > Good luck. > > > > Joe > > > >Hi Joe > >Thank you for the tip. >I followed your advice , and emailed Kron-Hite service , asking if it >would be possible to get a copy of the service manual. > >And i just got a very plesant response from >their Service Department Manager , with the complete E100C service manual >attached. and a best of luck with the restoration project. > >Thumbs up Krohn-Hite , and thank you for the excellent service. > >CFO - Denmark > >_______________________________________________ >volt-nuts mailing list -- volt-nuts@febo.com >To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/volt-nuts >and follow the instructions there. >_______________________________________________ >volt-nuts mailing list -- volt-nuts@febo.com >To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/volt-nuts >and follow the instructions there. Sincerely, Marv Gozum Philadelphia, PA