Path: utzoo!utgpu!water!watmath!clyde!rutgers!mcnc!ece-csc!ncrcae!ncr-sd!crash!guhsd000
From: guhsd000@crash.cts.com (Paula Ferris)
Newsgroups: sci.electronics
Subject: Crystal Question (Please forgive me)
Message-ID: <2533@crash.cts.com>
Date: 12 Feb 88 17:05:03 GMT
Reply-To: guhsd000@crash.cts.com (Paula Ferris)
Distribution: na
Organization: Crash TS, El Cajon, CA
Lines: 31

I play with eletronics as a hobby, I'm self taught (I know there's alot I don't know, but I'm not illiterate on the subject), and have never taken a formal course or class on the subject. <This is my excuse>

Anyway, I'm building some simple transmitters, from schematics.  Anyway, it threw me a curve.  I have never played with crystals, and there is something I don't understand.  On the schematic it says:

"X1 - 52 Mhz, any 3'rd Overtone type"

And on a similar one it says:

"X1 - 16 Mhz, Fundamental"

What exactly is 3'rd Overtone type, and Fundamental?  I know what an overtone is, but I'm not quite sure it's related here.  I poured over by books, most of them don't disscuss crystals at all.

Can anyone help me out, and further my knowledge?

             Thank You In Advance.
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