Hi Michael,
The resistors we use are 820 ohm (2% tolerance) 1/4 watt.  You should be 
able to pick them up for cheap through an electronics store or distributor 
on line.  It is pretty straightforward to solder them in--remembering to 
shield the wire leads with shrink wrap.


At 11:21 AM 6/7/2011, you wrote:
>Dear Isogeochemist's,
>
>the liquid nitrogen refill in the Kiel III carbonate device is controlled 
>by a chain of 3 resistors. Unfortunately, one of the resistors broke off 
>and it is currently quite difficult to get the spare part number from 
>Thermo (unfortunately the part number is neither listed in my manual).
>
>Did anybody have to order this resistor chain and still remembers the 
>spare part number? Or does anybody have any advice concerning the 
>specifications of these resistors.
>
>Any advice is appreciated
>
>Thanks in advance
>
>Michael Joachimski
>
>
>NEW EMAIL: [log in to unmask]
>............................................................
>Michael Joachimski
>Professor
>GeoZentrum Nordbayern
>University of Erlangen-Nuremberg
>Schlossgarten 5
>91054 Erlangen
>Germany
>
>Tel: +49-9131-8529296 (office)
>         +49-9131-8529297 (lab)
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>
>Homepage: 
>http://www.gzn.uni-erlangen.de/krustendynamik/mitarbeiter/akademische-mitarbeiter/joachimski/
>............................................................

Lora L. Wingate
University of Michigan
Department of Geological Sciences
Stable Isotope Laboratory
1100 North University
1013 C.C. Little Building
Ann Arbor, MI 48109-1005