Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Publication of BE441417ApublicationCriticalpatent/BE441417A/xx
H01J43/02—Tubes in which one or a few electrodes are secondary-electron emitting electrodes
H—ELECTRICITY
H03—ELECTRONIC CIRCUITRY
H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
H03D7/06—Transference of modulation from one carrier to another, e.g. frequency-changing by means of discharge tubes having more than two electrodes
H03D7/10—Transference of modulation from one carrier to another, e.g. frequency-changing by means of discharge tubes having more than two electrodes the signals to be mixed being applied between different pairs of electrodes