[R-390] 200-kHz calibrator crystal

[Roy Morgan]

At 10:31 AM 2/26/2007, you wrote:
>Group,
>
>I looking for a current source for the 200-kHz HC-6/U calibrator crystal.


Charles,

One supplier known to make low frequency crystals is below.  It's possible 
he is one of only maybe two who still make them.

Universal Crystals Inc.
Jim Little
5407 Payne St., Shawnee Mission KS 66226,
United States
(913) 334-6254

Note that the R-390A calibrator crystal lives in an oven (at 75C, I think).


Roy

- Roy Morgan, K1LKY since 1959 - Keep 'em Glowing
13033 Downey Mill Road, Lovettsville, VA 20180
Phone 540-822-5911   Cell 301-928-7794
Work: Voice: 301-975-3254,  Fax: 301-975-6097
roy.morgan at nist.gov --