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Recording the action potentials of nerves in an unscreened room

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Bulletin of Experimental Biology and Medicine Aims and scope

Summary

By employing in each half of the symmetrical input cascade of the amplifier a series combination of two triodes and a pentode as a total cathode load with a deep inverse feedback—it becomes possible to bring the rejection factor of such an amplifier up to one million (without the matching of tubes).

A portable double-channel preamplifier using such a circuit has been developed for work with an industrial double-beam oscillograph. With the aid of this preamplifier and electrodes of special construction it was possible to register the potential of nerve action of animals in short-term experiments without screening the room and object in usual laboratory conditions.

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Literature Cited

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Authors and Affiliations

  1. The Experimental Laboratory of the Institute of Normal and Pathological Physiology of the Academy of Medical Sciences, Moscow, USSR

    L. A. Osterman

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  1. L. A. Osterman
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Osterman, L.A. Recording the action potentials of nerves in an unscreened room. Bull Exp Biol Med 45, 751–754 (1958). https://doi.org/10.1007/BF00824600

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  • DOI: https://doi.org/10.1007/BF00824600

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