Generating 40K Hz Audio with a 555 timer
I'm looking for ways to generate a 40K Hz signal with a 555 Timer. I've been through the 555 timer calc
and I'm not liking the values its wanting me to use for R1 and C2.
So i found the schematic shown below. Will i be able to replace the IR LEDs with a small amp and speaker and get a good 40kHz tone out of it?
Are there any better options i should be looking at for creating a 40K Hz audio signal?
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