Frequency doubler Stock Photos and Images
. The Bell System technical journal . radio-frequency voltage developed by the crystal oscil-lator is applied directly to the grid of a 7>^-watt screen-grid tube whichcan be used either as an amplifier or a frequency doubler. The outputof this tube, except in the case of the higher frequencies, is applieddirectly to the grid of a 50-watt screen-grid amplifier. For the higherfrequencies a second frequency doubler can be switched into the circuit.The output of the 50-watt tube is coupled through a balanced trans-former to the final amplifier stage. The amplifier or frequency doubler RADIO TEL Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/the-bell-system-technical-journal-radio-frequency-voltage-developed-by-the-crystal-oscil-lator-is-applied-directly-to-the-grid-of-a-7gt-watt-screen-grid-tube-whichcan-be-used-either-as-an-amplifier-or-a-frequency-doubler-the-outputof-this-tube-except-in-the-case-of-the-higher-frequencies-is-applieddirectly-to-the-grid-of-a-50-watt-screen-grid-amplifier-for-the-higherfrequencies-a-second-frequency-doubler-can-be-switched-into-the-circuitthe-output-of-the-50-watt-tube-is-coupled-through-a-balanced-trans-former-to-the-final-amplifier-stage-the-amplifier-or-frequency-doubler-radio-tel-image376129847.htmlRM2CRX5CR–. The Bell System technical journal . radio-frequency voltage developed by the crystal oscil-lator is applied directly to the grid of a 7>^-watt screen-grid tube whichcan be used either as an amplifier or a frequency doubler. The outputof this tube, except in the case of the higher frequencies, is applieddirectly to the grid of a 50-watt screen-grid amplifier. For the higherfrequencies a second frequency doubler can be switched into the circuit.The output of the 50-watt tube is coupled through a balanced trans-former to the final amplifier stage. The amplifier or frequency doubler RADIO TEL
