sPoy-4 | i 4 — joe, _ 1 gp 90V 3: system Iw GROUND si00K gj iB Fe D4, { 5; 1 z, 0 OK oom INSTRUMENT GROUND lp32 Dig r Pstook =0s CABLE 0 e [b2e b LE a 4, 4 ' 5M b———-DA3 t—Paz, C Sy] = +-——Dage FILAMENT 120 v. a LJ 300V.| 300V] 300v} 300V ev tpetofe ef il ee perenne Focus omy Al H-t MIN RELAY | [Hp tf if_—i| t| ———— Gt, ‘ CONTROL GRIDS (|+-+ snisurness [= CONTROLS 30V Fig. 3.4-—-Cathode-ray oscilloscope and detector (phototube) output circuit. 18 Pr RESTRICTED pata S- seduricy INFORMATION

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