Amplitude modulation to single or double sideband suppressed carrier converter

Claim 1

A CIRCUIT FOR CONVERTING AMPLITUDE MODULATED RATIO FREQUENCY CARRIER SIGNALS TO DOUBLE SIDEBAND SUPPRESSED CARRIER SIGNALS COMPRISING INPUT TERMINALS TO WHICH SAID SIGNALS TO BE CONVERTED ARE APPLIED, A BALANCED MODULATOR COMPRISING FIRST AND SECOND TUBES, EACH HAVING A CATHODE, A CONTROL GRID, A SCREEN GRID AND ANODE ELECTRODES, A TRANSFORMER HAVING A PRIMARY WINDING AND A CENTER TAPPED SECONDARY, WINDING MEANS CONNECTING SAID INPUT TERMINALS TO SAID PRIMARY WINDING, MEAND CONNECTING THE RESPECTIVE ENDS OF THE CENTER TAPPED SECONDARY WINDING TO THE RESPECTIVE CONTROL GRIDS OF SAID FIRST AND SECOND TUBES, MEANS FOR TUNING SAID TRANSFORMER TO THE FREQUENCY OF SAID RADIO FREQUENCY CARRIER SIGNALS, MEANS CONNECTING THE CATHODES OF SAID FIRST AND SECOND TUBES TOGETHER, DIODE DEMODULATOR MEANS, MEANS FOR CONNECTING SAID DIODE DEMODULATOR MEAND TO SAID INPUT TERMINALS TO DEMODULATE THE SIGNALS APPLIED TO SAID INPUT TERMINALS, MEANS FOR CONVERTING SAID DEMODULATED SIGNALS TO PUSH-PULL SIGNALS, MEANS FOR CONNECTING THE PUSH-PULL SIGNALS TO THE SCREEN GRIDS OF SAID FIRST AND SECOND TUBES, A COMMON OUTPUT LOAD, AND MEANS FOR CONNECTING THE ANODES OF SAID FIRST AND SECOND TUBES TO SAID COMMON OUTPUT LOAD.