of public universities in the united states. electronic television[ edit ] main article: video camera tube in , j. j. thomson , an english physicist , in his three famous experiments was able to deflect cathode rays, a fundamental function of the modern cathoderay tube (crt). the earliest version of...
principles of the gauge, the range of pressures it can measure, and its accuracy over the required range. these factors have been determined by experience and there is a vacuum gauge for every pressure range. for low ("rough") vacuum ranges (higher pressures) between atmospheric and torr, bourdon tubes...
ray tube (class / ) inter-electrode connection (class / ) control electrode unit (class / ) with evacuating pump (class / ) arc and separate incandescent body (class / ) filament and separate incandescent body (class / ) with temperature indicator (class / ) with temperature modifier (class / ) spark...
recording or reproducing apparatus, whether or not incorporating a video tuner 934.27 1,330.14 42.37 21 8522 prts and acssrs of apprts of hdgs nos. 8519 to 8521 359.14 453.27 26.21 22 8523 preprd unrecorded media for sound recrdng/smlr recrdng of othr phenomena,othr thn prdcts of ch.37 188,824.42 210,161.04...
recording or reproducing apparatus, whether or not incorporating a video tuner 934.27 1,330.14 42.37 21 8522 prts and acssrs of apprts of hdgs nos. 8519 to 8521 359.14 453.27 26.21 22 8523 preprd unrecorded media for sound recrdng/smlr recrdng of othr phenomena,othr thn prdcts of ch.37 188,824.42 210,161.04...
system ultrasound uf ax uf xtd uf ag uf ag dre crystal p dre fs- p dre fs- vascularscreening vs n veinlites veinlite ledx veinlite led veinlite ems veinlite pedi veinlite veinlite p veinlite ls veinlite ii ventilators newport breeze e- compact newport e m newport ht newport wave e- pulmonetic ltv- x ray...