Valve amplifier push-pull output stage
阅读：147发布：2021-12-27
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1. A VALVE-AMPLIFIER PUSH-PULL OUTPUT STAGE COMPRISING FIRST AND SECOND VALVES EACH HAVING AN ANODE, A CONTROL GRID AND A CATHODE, BOTH ANODES BEING CONNECTED TO OUTPUT MEANS OF THE STAGE, EACH CONTROL GRID BEING CONNECTED TO A RESPECTIVE SIGNAL INPUT POINT AND THE CATHODES OF THE FIRST AND SECOND VALVES BEING CONNECTED RESPECTIVELY TO FIRST AND SECOND CATHODE RESISTANCES, EACH CATHODE RESISTANCE HAVING A TAPPING INTERMEDIATE ITS ENDS, THERE BEING PROVIDED, FIRST AND SECOND CATHODE DECOUPLING CONDENSERS CONNECTED ACROSS THE FIRST AND SECOND CATHODE RESISTANCES RESPECTIVELY, FIRST AND SECOND GRID LEAK RESISTANCES CONNECTED, RESPECTIVELY, BETWEEN THE CONTROL GRID OF THE FIRST VALVE AND A FIRST GRID-CIRCUIT JUNCTION AND BETWEEN THE CONTROL GRID OF THE SECOND VALVE AND A SECOND GRID-CIRCUIT JUNCTION, FIRST AND SECOND GRID-CIRCUIT CONDENSERS CONNECTED RESPECTIVE BY BETWEEN THE FIRST GRID-CIRCUIT JUNCTION AND THE CATHODE OF THE FIRST VALVE AND BETWEEN THE SECOND GRID-CIRCUIT JUNCTION AND THE CATHODE OF THE SECOND VALVE, AND FIRST AND SECOND CROSS-CONNECTING RESISTANCES CONNECTING, RESPECTIVELY, THE FIRST GRID-CIRCUIT JUNCTION TO THE TAPPING OF THE SECOND CATHODE RESISTANCE AND THE SECOND GRIDCIRCUIT JUNCTION TO THE TAPPING OF THE FIRST CATHODE RESISTANCE, WHEREIN THE TIME CONSTANTS ASSOCIATED WITH THE FIRST GRID-CIRCUIT CONDENSER AND FIRST CROSS-CONNECTING RESISTOR AND WITH THE SECOND GRID-CIRCUIT CONDENSER AND SECOND CROSS-CONNECTING RESISTANCE ARE GREATER THAN THE RESPECTIVE TIME CONSTANTS ASSOCIATED WITH THE FIRST CATHODE RESISTANCE AND FIRST CATHODE DECOUPLING CONDENSER AND, RESPECTIVELY, WITH THE SECOND CATHODE RESISTANCE AND SECOND CATHODE DECOUPLING CONDENSER.
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