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Arrangement for converting alternating current at a given frequency in such a different a given frequency by a controlled discharge paths, in particular by grid abruptly in a controlled electrons with bending thermionic cathode, without an intermediate d.c. circuit
Arrangement for converting alternating current at a given frequency in such a different a given frequency by a controlled discharge paths, in particular by grid abruptly in a controlled electrons with bending thermionic cathode, without an intermediate d.c. circuit