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Article #9250Re: What is the noise voltage of a 1.5V cell
From: Scott Dorsey
Date: Thu, 03 Jan 1991 13:27
Date: Thu, 03 Jan 1991 13:27
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In article <1991Jan3.001303.483@ae.chalmers.se> hogstedt@ae.chalmers.se (PER HOGSTEDT) writes: >As a kind of last resort, I would like to know what the noise is of a >regular 1.5V (e.g. alkaline) cell, assuming the cell is kept at >room temperature and loaded only by some microAmps? I don't know what the value is offhand, but it's low-but-measurable, and fairly well distributed. A reference oscillator I use has a reactance tube which uses a battery as the bias source for low noise. Alkaline cells are better than dry batteries, and mercury cells are much lower noise than the alkaline ones. I haven't tried lithium or magnesium cells, but they might be worth fooling around with. It's so easy to get batteries, so give it a try. -- Scott Dorsey/ Kaptain Kludge NASA Langley Research Center, Aircraft Guidance and Control Branch Disclaimer: Neither NASA nor Lockheed really know anything about what
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<1991Jan3.132727.10780@news.larc.nasa.gov>Path:
arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!rutgers!cs.utexas.edu!uunet!news.larc.nasa.gov!grissom.larc.nasa.gov!kludgeReferences:
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!rutgers!cs.utexas.edu!uunet!news.larc.nasa.gov!grissom.larc.nasa.gov!kludge From: kludge@grissom.larc.nasa.gov ( Scott Dorsey) Newsgroups: sci.electronics Subject: Re: What is the noise voltage of a 1.5V cell Message-ID: <1991Jan3.132727.10780@news.larc.nasa.gov> Date: 3 Jan 91 13:27:27 GMT References: <1991Jan3.001303.483@ae.chalmers.se> Sender: news@news.larc.nasa.gov (USENET Network News) Reply-To: kludge@grissom.gatech.edu ( Scott Dorsey) Organization: NASA Langley Research Center Lines: 17