Re: Heater Dewars

Graham Barlow (gkb1@bohr.york.ac.uk)
Tue, 27 Aug 1996 15:15:24 +0100

On Aug 27, 9:46am, RDUDLEY wrote:
> Subject: Heater Dewars
> Hi all,
> Two weeks ago I broke the heater dewar of a Bruker MSL-300 high
> resolution solutions probe. The replacement cost was quite high. The old
> dewar appears to be easily repaired as only the ground glass joint connects
to
> the vt air line snapped off. Unfortunately we do not have a glass blower at
> our site. Does anyone out there know of someone who can make these types of
> repairs? Any help would be greatly appreciated.
>
> Bob Dudley
> rdudley@arserrc.gov
>-- End of excerpt from RDUDLEY

In my experience these repairs are usually not easy. When the joint snapps off
the dewar usually goes soft, even if it doesn't the repair has to be done
without damaging the dewar through which the joint goes. In addition, our
dewars have all been quartz which many glassblowers won't work with.

This said, I do have a UK contact who will both repair and fabricate dewars at
prices much cheaper than instrument manufacturers. If anyoune wants the info
then please mail me privately.

Regards,

Graham Barlow

-- 


 /   Dr. Graham Barlow, NMR Service Manager  \  /  gkb1@york.ac.uk  \
[ Dept. of Chemistry, Univ. of York, York, UK ][  Tel: 01904 432506  ]
[     http://www.york.ac.uk/depts/chem/nmr    ][ Mobile: 0402 181253 ]
 \       http://www.york.ac.uk/~gkb1/        /  \ Fax: 01904 432516 /