[Boatanchors] XTAL tester question
Bob Hardie- W5UQ
W5UQ at verizon.NET
Mon Dec 22 17:45:30 EST 2008
Oh yes... ONE MORE THING.... IF you use an MFJ 259 or 269, you can read
the freq of the crystal out on the MFJ unit... it will peak on the
fundamental of the crystal...
If you use a signal generator, then put a freq counter on it and at the
peak, the counter will read out the freq...
I've tested hundreds of crystals... Heathkit crystals can be compared to
each other if you have some on the same frequencies... they become
SOFT... hard to excite... so the output gain of the signal generator
can be decreased and compared with other crystals... after a while you
become aware of the "LEVEL" for a good crystal and a mediocre and a WEAK
crystal...
EXPERIMENT... have fun... it's fun...
Bob
WØQFC wrote:
> Would like to talk to anyone who has built/used the "Improved Crystal
> Tester" by Larry G Ledford, KA4J, as featured in the Janurary1992 issue of
> 73 magazine.
>
> TIA es Happy Holidays!
>
> Gene, WØQFC
>
> Stuff for sale: www.w0qfc.shutterfly.com
> Web site: www.w0qfc.com
>
> AF&AM #91 Lafayette CO
>
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