Journal - Franklin Institute of the State of Pennsylvania (1826)
Franklin Institute, Philadelphia, Franklin Institute (Philadelphia, Pa.) · [Philadelphia : Franklin Institute] · leaf 353
o the velocity. 344 Gordon F. Hull. [J-F.I. variation with time. Only one gage which can be used in largeguns has so far been devised, vie, that due to Doctors Curtis andDuncan, of the Bureau of Standards. It has, so the writer feels,certain defects which ought to be avoided. About two years agothe… … by the pressure be led to the grid-filament circuit of a suitable elec-tron tube or amplifier, and that the resulting variations of the platecurrent be recorded by means of a sensitive, high-frequency, criti-cally damped oscillograph. It would be necessary of course to con-nect the metal coating of…
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