What's this crystal?

(*steve*)

¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd
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Jan 21, 2010
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I purchased some crystals that were supposed to be 32.768kHz in a form usable for breadboarding.

They didn't work (and no, these aren't from China :))

When I replaced them with a surface mount crystal on legs, the circuit leaped into operation.

I'm wondering... Is it possible that these are 32.768 MHz? Unfortunately the site I ordered them from no longer has an active link to them :(

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galaxy

Nov 3, 2012
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Possible it is a 32.768 Mhz, I seem to remember seeing them somewhere.
I've got an old CB crystal tester from years gone by. Would just give a meter reading of good or bad, but I found it was quite wideband and coupled to a frequency counter I could get a good idea of unknown crystals.

Perhaps you could whip up a simple wideband oscillator to test the Mhz theory?
 

(*steve*)

¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd
Moderator
Jan 21, 2010
25,510
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Perhaps you could whip up a simple wideband oscillator to test the Mhz theory?

Yeah, I was going to try that, but a quick Google showed me plenty of circuits that seemed capable of 100kHz to 20MHz. Sure, they might extend a bit beyond that, but 32MHz and 32kHz are both well outside that.

I will give it a go though.

I was also going to try placing the crystal across a signal generator (with a series resistor) just to see if I can see a change in response around 32kHz.
 
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