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Author Topic: Crystal Frequency ?  (Read 3296 times)

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Offline alin_imTopic starter

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Crystal Frequency ?
« on: May 23, 2015, 03:32:50 pm »
Hey guys,

How can I find the frequency of a crystal if it does not have any marking on it ???
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One man's 'magic' is another man's engineering. 'Supernatural' is a null word. - Robert A. Heinlein
 

Offline PA0PBZ

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Re: Crystal Frequency ?
« Reply #1 on: May 23, 2015, 03:41:45 pm »
Build an oscillator and measure it  ;) But really, no markings at all seems a bit odd. Did you take it from a pcb? Any pictures?

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Offline continuo

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Re: Crystal Frequency ?
« Reply #2 on: May 23, 2015, 04:30:46 pm »
W2AEW made a very nice vid on building such an oscillator, check it out  :-+

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Offline alin_imTopic starter

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Re: Crystal Frequency ?
« Reply #3 on: May 23, 2015, 04:53:04 pm »
Quote from: continuo on May 23, 2015, 04:30:46 pm
W2AEW made a very nice vid on building such an oscillator, check it out  :-+



wow nice ! thank you very much that is exactly what i wanted.
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One man's 'magic' is another man's engineering. 'Supernatural' is a null word. - Robert A. Heinlein
 

Offline PA0PBZ

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Re: Crystal Frequency ?
« Reply #4 on: May 23, 2015, 06:20:20 pm »
I planned to post that after you came back with maybe more info, but I see somebody already did! Good luck, you will learn something new.
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Offline w2aew

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Re: Crystal Frequency ?
« Reply #5 on: May 23, 2015, 08:01:17 pm »
It's always great to see when one of my videos helps someone.
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Offline PA0PBZ

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Re: Crystal Frequency ?
« Reply #6 on: May 23, 2015, 08:16:32 pm »
Quote from: w2aew on May 23, 2015, 08:01:17 pm
It's always great to see when one of my videos helps someone.

Your videos get quoted a lot here Alan, because you are very good at explaining the basics and you cover a lot of different subjects.
Well done  :-+
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Offline Isad

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Re: Crystal Frequency ?
« Reply #7 on: May 23, 2015, 09:44:27 pm »
I watched that video 5 times before bulding one for my self dont know
why i watched them but they just seemed helpfull.Btw just
asking i have build that circuit and i am measuring the out with a
rigol ds1074z oscilloscope and i wanted to know whats the
precision on the frequency counter on the rigol?
Sorry if this might be of topic.
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