. The Bell System technical journal . d to as a co-planar-grid tube, is shown schemati-cally in Fig. 17. The lateral wires of the two grids are asymmetricallyarranged, the positive and negative lateral wires being arranged inpairs close together. The object of this arrangement may be describedroughly as follows: By such an arrangement, when the control grid isvery negative, the field about each negative wire very largely neutral- * This section, Co-Planar Grid Tubes, is an addition to the material publishetlin Electrical Engineering. 78 BELL SYSTEM TECHNICAL JOURNAL izes the field due to its p
. The Bell System technical journal . d to as a co-planar-grid tube, is shown schemati-cally in Fig. 17. The lateral wires of the two grids are asymmetricallyarranged, the positive and negative lateral wires being arranged inpairs close together. The object of this arrangement may be describedroughly as follows: By such an arrangement, when the control grid isvery negative, the field about each negative wire very largely neutral- * This section, Co-Planar Grid Tubes, is an addition to the material publishetlin Electrical Engineering. 78 BELL SYSTEM TECHNICAL JOURNAL izes the field due to its positive companion so that the latter becomesineffective in drawing electrons avv^ay from the cathode. As thenegative grid approaches zero potential it uncovers the positive gridelectrically so that the latter becomes highly effective in drawing alarge space current from the cathode at the moment when the peakcurrent is drawn to the plate. This would not be so effectively ac-complished if the lateral wires were symmetrically
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Keywords: ., bookcentury1900, bookdecade1920, booksubjecttechnology, bookyear1
