. The Bell System technical journal . O! r. umi 50 GAS-DISCriARGE TRANSMIT-RECEIVE SWITCH 51 The radar on the Boise in the battle off Savo Island on October 1112,1942 employed a 702A vacuum tube. Three developments soon led to the need for much improved TR of these was the rapid progress which was being made in increasing thepeak output power from the magnetron. The second was improvementsin the silicon point contact rectifier, the so-called crystal detector, whichincreased its reliability and convenience and at the same time reduced itsconversion loss and noise figure as com


. The Bell System technical journal . O! r. umi 50 GAS-DISCriARGE TRANSMIT-RECEIVE SWITCH 51 The radar on the Boise in the battle off Savo Island on October 1112,1942 employed a 702A vacuum tube. Three developments soon led to the need for much improved TR of these was the rapid progress which was being made in increasing thepeak output power from the magnetron. The second was improvementsin the silicon point contact rectifier, the so-called crystal detector, whichincreased its reliability and convenience and at the same time reduced itsconversion loss and noise figure as compared with the vacuum tube con-verter. The third was the development of still higher frequency systems to ? <J&*»^Jf ^IasVS*


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Keywords: ., bookcentury1900, bookdecade1920, booksubjecttechnology, bookyear1