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H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
H03B11/00—Generation of oscillations using a shock-excited tuned circuit
H03B11/02—Generation of oscillations using a shock-excited tuned circuit excited by spark
Verfahren zum Erhoehen der Empfindlichkeit besonders von solchen magnetischen Instrumenten und Apparaten, deren Wirkung von der Permeabilitaet von weichem Eisen oder aehnlichem magnetischen Material abhaengt