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Gustave Ferrié & Jules Carpentier old galvanometer wavelength counter TSF /.
good condition with traces of use and normal wear for an object over 100 years old.
dimensions 25 cm by 25 cm and 8 cm in height.
diameter of the wave counter 20 cm.
After the invention of the telegraph and Marconi's first attempts, Gustave Ferrie, then a captain in the Engineers in the service of the military telegraph, was commissioned by the Minister of War, Freycinet, to continue to experiment more and do more studies at the establishment in France of a material which would be of first-class military importance. To achieve these successes, Gustave Ferrie requested a collaboration as manufacturer Jules Carpentier. They studied the construction of new bases of induction coils and mercury switches specially designed for the TSF, and quickly set up a complete electrical equipment for the production of radio waves for downloading powerful capacitors to the age. Jules Carpentier, still in collaboration with Gustave Ferrie, also created the wave counter, frequency meter, ammeter and special thermal ohmmeter for the introduction of the measurement and calculation of the various organs of the TSF. In 1921, the appearance of the light with three electrodes of the American DeForest came to revolutionize the technique of TSF and Carpentier took charge of introducing the results of electrical and radio measuring instruments when his death abruptly stopped the course of their work.
After the invention of the telegraph and Marconi's first attempts, Gustave Ferrie, then a captain in the Engineers in the service of the military telegraph, was commissioned by the Minister of War, Freycinet, to continue to experiment more and do more studies at the establishment in France of a material which would be of first-class military importance. To achieve these successes, Gustave Ferrie requested a collaboration as manufacturer Jules Carpentier. They studied the construction of new bases of induction coils and mercury switches specially designed for the TSF, and quickly set up a complete electrical equipment for the production of radio waves for downloading powerful capacitors to the age. Jules Carpentier, still in collaboration with Gustave Ferrie, also created the wave counter, After the invention of the telegraph and Marconi's first attempts, Gustave Ferrie, then a captain in the Engineers in the service of the military telegraph, was commissioned by the Minister of War, Freycinet, to continue to experiment more and do more studies at the establishment in France of a material which would be of first-class military importance. To achieve these successes, Gustave Ferrie requested a collaboration as manufacturer Jules Carpentier. They studied the construction of new bases of induction coils and mercury switches specially designed for the TSF, and quickly set up a complete electrical equipment for the production of radio waves for downloading powerful capacitors to the age. Jules Carpentier, still in collaboration with Gustave Ferrie, also created the wave counter,
