. Electronic apparatus for biological research . Cathode Hj. Brightness Figure EHT- For general electrobiological work, direct coupling to the deflector plates is more satisfactory, and in this case the deflection amplifiers and the tube supply network have to be designed together. Figure shows a possible scheme in which a long-tailed pair forms the output stage of the Y deflection amplifier. The output of the time-base generator may be fed to the X plates HT+ and EHT + From earlierlââ stages in time base generator

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