Maker Pro
Maker Pro

what do I have here?

(*steve*)

¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd
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This looks interesting. Anyone have any guesses what it is?

1546507754234370.jpg
 

(*steve*)

¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd
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Unfortunately the lowest frequency I could get was 22kHz. I have another that is 52kHz.

It seems like each crystal was individually tested. They come with a form having hand-written specifications written on it.

1546560091873907.jpg 1546560092051231.jpg 1546560092210514.jpg 1546560092364844.jpg
 

duke37

Jan 9, 2011
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I have one somewhere that resonates at 100kHz. I compared it to Droitwich and could slip a cycle in more than 10sec.
 

(*steve*)

¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd
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I got these to play with them after I saw a report on the Q of a heap of crystals. Of the huge set of crystals tested, the ones in glass bottles had the highest Q (by a large margin).

And these are really large crystals!

I'd like to make a low frequency ovenised oscillator just for the fun of it. It would be interesting to have the active element be a valve too :)
 
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