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- Path: sparky!uunet!news.tek.com!sail!scottb
- From: scottb@sail.LABS.TEK.COM (Scott Baker)
- Newsgroups: sci.electronics
- Subject: microphone circuit
- Keywords: microphone
- Message-ID: <13134@sail.LABS.TEK.COM>
- Date: 4 Jan 93 02:29:35 GMT
- Reply-To: scottb@sail.LABS.TEK.COM
- Distribution: na
- Organization: Tektronix, Inc., Beaverton, OR.
- Lines: 17
-
- Can someone recomend a minimal part count and minimal power
- (battery powered) circuit to amplify a microphone
- just enough to trigger a frequency counter (25 mV RMS sine wave
- sensitivity, with trigger level variable +-350 mV around the
- average value of the input). The microphone is a Radio Shack
- model 33-2001 with 500 Ohm impedance.
-
- I'm want to use a frequency counter as a guitar tuner.
-
- Thanks:
- Scott Baker scottb@sail.labs.tek.com
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