"We determine the performance of all of our receiving sets by using RCA Radiotrons. That is because they materially enhance the reception of our instruments. We urge our dealers to recommend the for initial equipment and for replacement."

"We determine the performance of all of our receiving sets by using RCA Radiotrons.  That is because they materially enhance the reception of our instruments.  We urge our dealers to recommend the for initial equipment and for replacement."

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