This report describes the work performed by the General Electric Power Tube Department under Signal Corps Contract DA36-039 sc-74837 in evaluating UHF Planar. Triode Tubes, Type 6897 in the positive grid region and for pulse emission using a long square wave pulse voltage applied to the grid. The division of current between the grid and anode was measured in the current division test and the bias necessary to obtain a designated plate current was recorded. In the long pulse test, the falling off of total cathode current during the pulse was used as the criteria of measurement. Tests were con¬ducted with both 5. 5 volts and 6. 3 volts applied to the heater.
展开▼
