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- From: andrews@sp95.csrd.uiuc.edu (John Andrews)
- Subject: Re: ==> +30db GAIN Circuit for Your Guitar: $25 <==
- Message-ID: <1992Dec30.193338.17203@csrd.uiuc.edu>
- Sender: news@csrd.uiuc.edu
- Organization: UIUC Center for Supercomputing Research and Development
- References: <9212182117.AA01210@floyd.cca.cr.rockwell.com> <13450045@hpspdla.spd.HP.COM> <1992Dec30.150508.19815@erenj.com> <TILL.92Dec30110737@acid-rain.lucid.com>
- Date: Wed, 30 Dec 92 19:33:38 GMT
- Lines: 28
-
- till@acid-rain.lucid.com (Don Tillman) writes:
-
- > From: srfergu@rufus.erenj.com (Scott Ferguson)
- > Organization: Exxon Research & Engineering Co.
- > Date: Wed, 30 Dec 1992 15:05:08 GMT
-
- > OK, so what is a good choice of low-noise op amp for typical guitar preamps
- > with single-source 9V?
-
- >Damn near anything. :-)
-
- >Try a TL07x series, OP-27, NE5532, whatever; y'know anything actually
- >designed for audio work.
-
- >Personally, I don't like the sound of op-amp circuits because of all the
- >usual high feedback and clipping issues (motto: "op-amps are for weenies"),
- >so I use a low distortion discrete FET circuit instead.
-
- > -- Don
-
- The op amps you mentioned are for dual supplies, aren't they? There are few
- op amps designed for a single supply. Are you assuming that someone can
- create an artificial ground with a 9V battery and use +/- 4.5 volt "supplies"?
- How well would this work?
-
- --
- John Andrews (andrews@csrd.uiuc.edu) "He who dies with the shortest .sig, wins"
- Graduate Research Assistant, Center for Supercomputing R&D, Urbana, IL
-