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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 31 for “"Vacuum Tube"”.
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The prediction of amplitude of oscillation in vacuum tube [fari,jam,c
Thesis (B.S.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering, 1933.
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The solution of vacuum tube circuit problems by means of the differential analyzer
Thesis: M.S., Massachusetts Institute of Technology, Department of Electrical Engineering, 1932
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Analysis and restoration of a 1960s ear vacuum tube AM-FM reflex receiver
… restoration, and evaluation of a 1960s era vacuum tube AM-FM reflex receiver. External influences such as tax laws necessitated clever designs to minimize the use of expensive vacuum tubes in radios. The thesis work yielded a thorough description of the circuits, the successful restoration …
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An investigation of the merits of a four-element coplanar vacuum tube when used as a modulator at carrier telephone frequencies
Thesis: M.S., Massachusetts Institute of Technology, Department of Electrical Engineering, 1930
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A study with the differential analyzer of the steady-state and transient response of simple vacuum-tube amplifier circuits under different load conditions
Thesis: M.S., Massachusetts Institute of Technology, Department of Electrical Engineering, 1933
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The design, construction, and calibration of a generating voltmeter for a two million volt electrostatic accelerator
… the rectified output of which is measured by a vacuum tube voltmeter. The voltmeter was calibrated by known nuclear resonances of fluoride. The calibration showed the meter to be accurate to within five percent at half scale deflation on the one million volts range the less than plus or minus …
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Solid-state conversion of a tube-type communications receiver
… in replacement of the original eighteen vacuum tubes. Replacement was effected in a stage- for-stage manner so as to utilize, wherever practicable, the original system of operation and particularly the existing tuned circuits for which the receiver was famous. The project goals were to …
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Preliminary Investigation into Solar Thermal Combi-system Performance
… of solar collector types (glazed vs. vacuum tube) and heat exchanger types (fixed effectiveness vs. natural convection). Each system combination was optimized for collector flow rate and tilt angle, and all systems were given the same solar collector area, thermal storage volume, and …
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Tubeworks
… world of music the transistor has supplanted the vacuum tube. Transistors do the same sort of job as vacuum tubes but they use germanium or silicon in their manufacture, thus the current is produced in a solid state, rather than a vacuum. Most electronic devices are built with solid state …
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Intensity distribution in cylindrical and bowl shaped transducers and sono-dialysis of a caustic solution
… voltages thus produced were indicated by a vacuum tube voltmeter. This element was cemented in a hypodermic needle in turn was held in a lucite rod (1/2 inch in diameter and five inches in length) which served as a holder. This arrangement was used to probe the sonic fields of cylindrical …
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Mæling á svörtu kolefni / hreinu kolefni úr útblæstri bíla: Þróun aðferðar
… notaður var brennsluofn af gerðinni CD-1200G (Vacuum tube high temperature furnace). Þar voru notuð kol og sellulósi til þess að reyna að greina hvernig brennsluaðferð þyrfti að nota til þess að brenna allt lífræna kolefnið en halda öllu ólífræna efninu í sýninu til þess að þróa áfram aðferð …
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Thermionic Space Charge Oscillations
… the case where radiation is produced by a vacuum tube in which two Pierce guns face each other, one acting as the emitter, the other acting as a reflector. Symmetry and the focusing of the electron beam by the Pierce guns make it possible to make an accurate determination of the electron …
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Packaging and interconnection of a black-lit CCD sensor device
… using a materials system compatible with a high vacuum tube configuration. The CCD sensor is used in light sensor and digital camera devices. Currently, CCD devices are mechanically bonded to substrates using a variety of polymeric materials. For maximum resolution, however, the device must …
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Comparative private law: online defamation and service provider liability- a comparative study
… information. From the time when the first vacuum tube computers were introduced in the 1950s it took the U.S. Department of Defence only until 1969 to create the Internet. At that time their goal was to create a decentralised system to protect data and communication in the advent of a …
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Optical and Thermal Analysis of a Heteroconical Tubular Cavity Solar Receiver
… and optimisation focused on the absorber tubes of the Heteroconical receiver. This enabled further investigation into the effect of tube diameter on the total performance of the Heteroconical receiver and led to an optimal inner tube diameter for the receiver under given operating …
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Investigations into solar powered diffusion-absorption cooling machines
… as well as under simulated field conditions for vacuum-tube collectors. The first pilot plant showed that coefficient of performance values (COP) range from 0.1 to 0.2 and the evaporator cooling capacity of the pilot plant could reach 1.SkW, but that the operation stability was insufficient. The …
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