. QST . x^. e ponset lype^t^OO-yN rfrer amplifier. Note the 4 RCA-807s in parallel. LEADING AMATEUR DESIGNS ... Use nRCA Power Tubes Take Gonsets Model 500-W poweramplifier, for example. Solidly designed to meet the pres-ent and the future transmitter needsof progressive amateurs, this multi-purpose rf power amplifier is builtto deliver the goods—using fourRCA-807s in parallel. Why is RCA the choice of boththe commercial transmitter designerAND the amateur? RCA power tubes are built totake it. They are conservativelyrated and reliable. They have greatreserve of emission. They have high

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Keywords: ., bookcentury1900, bookdecade1910, booksubjectradio, bookyear1915