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January 6th 08, 01:20 PM
posted to rec.audio.pro,sci.electronics.equipment,rec.audio.tech,rec.radio.amateur.homebrew,sci.electronics.design
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inexpensive analog audio pitch (frequency?) meter or schematic / plans for one?
"jack" wrote in message
... National Semi still makes a "frequency to voltage" converter chip, so does Analog. But here's a link to using a PLL -- from National Semi -- Application Note 210 http://www.national.com/an/AN/AN-210.pdf This is fine, but what about the accuracy and resolution of the analog meter used to read the output? It still isn't clear why the OP is insisting on an analog display. |
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