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The results of researches made to recognize the best conditions in which triodes can be used for the detection of microwaves (frequencies of about 109per sec) are reported here. It seems that the detecting triodes, which must have their grids at a very high positive potential and the anode at a potential just lower than that of the positive end of the wire, act simply like rectifying diodes with electrodes very near to one another.
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N. Carrara (1932) studied this question.
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