Linear voltage control of current passed through a micropipette with variable resistance |
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| Authors: | T. R. Colburn E. A. Schwartz |
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| Affiliation: | (1) Section on Technical Development, National Institute of Mental Health, 20014 Bethesda, Maryland, USA;(2) Laboratory of Neurophysiology, National Institute of Neurological Diseases and Stroke, National Institutes of Health, 20014 Bethesda, Maryland, USA |
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| Abstract: | Passing current through high-impedance (108–109Ω) micropipettes, with the current magnitude a linear function of a voltage signal, requires the use of an active circuit. This paper describes a complete system for generating a current which is independent of the micropipette resistance, and for recording voltage from the same micropipette. |
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