div class=trans-pagebutton class=gotoPage data-page=1Page 1button div class=trans-imageimg data-url=documenta-cathode-ray-oscillograph-such-as-the-rca-stock-no-9545-type-tmv-122b-or-thehtmlpage=1 data-page=1 class=trans-thumb lazyload alt=Page 1: · A cathode-ray oscillograph such as the RCA Stock No 9545 Type TMV-122B or the RCA stock No 151 may be employed to advantage in calibrat- ing this beat-frequency oscillator loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII= data-src=https:reader033fdocumentsusreader033viewer20220530155f16128da9bc89401b77cca4html5thumbnails1jpg width=140 height=200 divdivdiv class=trans-pagebutton class=gotoPage data-page=2Page 2button div class=trans-imageimg data-url=documenta-cathode-ray-oscillograph-such-as-the-rca-stock-no-9545-type-tmv-122b-or-thehtmlpage=2 data-page=2 class=trans-thumb lazyload alt=Page 2: · A cathode-ray oscillograph such as the RCA Stock No 9545 Type TMV-122B or the RCA stock No 151 may be employed to advantage in calibrat- ing this beat-frequency oscillator loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII= data-src=https:reader033fdocumentsusreader033viewer20220530155f16128da9bc89401b77cca4html5thumbnails2jpg width=140 height=200 divdivdiv class=trans-pagebutton class=gotoPage data-page=3Page 3button div class=trans-imageimg data-url=documenta-cathode-ray-oscillograph-such-as-the-rca-stock-no-9545-type-tmv-122b-or-thehtmlpage=3 data-page=3 class=trans-thumb lazyload alt=Page 3: · A cathode-ray oscillograph such as the RCA Stock No 9545 Type TMV-122B or the RCA stock No 151 may be employed to advantage in calibrat- ing this beat-frequency oscillator loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII=...