RE: Non-Magnetic Capacitors

From: Rich Shoemaker <rshoe_at_wwitch.unl.edu>
Date: Tue, 5 Sep 2000 19:47:11 -0500

Hi Roger,

For fixed-value capacitors, you should look to ATC (American Technical
Ceramics), Inc. They sell a wide variety of non-magnetic capacitors, which
have been the staple of probe builders for years. They sell development
kits, with several capacitance values, which are invaluable in probe design
and development. Find them at http://www.atceramics.com .

For variable capacitors, you have several choices. A favorite of many is
Voltronics, Inc. Look at
http://www.voltronicscorp.com/Non_Magnetic/intro.html

For higher power applications, we solids people have relied upon Polyflon
capacitors for years. They are bulky, but they can handle quite a bit of
power. http://www.polyflon.com .

I can't remember the manufacturer of the large vacuum capacitors that we
used to use for really high-power applications, but I can dig that info. up
if you wish.

Gee, in the old days I had to dig though piles of catalogs. Now, it's much
easier <grin>.

Best of luck in your probe-building.

Rich Shoemaker

----
Richard Shoemaker, Ph.D.                        	Phone--(402) 472-6255
Instrumentation Director, Chemistry             	FAX---- 		  -6964
Research Associate Professor, Chemistry
University of Nebraska-Lincoln
URL:  http://www.chem.unl.edu/nmrlab.html
-----Original Message-----
From:	Roger Kautz [mailto:rkautz_at_lynx.dac.neu.edu]
Sent:	Tuesday, September 05, 2000 6:34 PM
To:	ammrl_at_wwitch.unl.edu
Subject:	Non-Magnetic Capacitors
Colleagues,
I am venturing into building probes.
Does anyone know where to get variable capacitors I can use inside the
magnet?
					-- Roger
===========================================================
Roger Kautz,  Staff Scientist, Ph.D.
Barnett Institute of Chemical and Biological Analysis
Room 341 Mugar Life Sciences Bldg.
Northeastern University, 360 Huntington Ave.
Boston, MA  02115
tel (617) 373 -8211
fax(617) 373-2804
email rkautz_at_lynx.neu.edu

Received on Tue Sep 05 2000 - 19:46:46 MST