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Simpson Proportional Alpha Counter

Description: Declassified Manhattan Project figure of Simpson Proportional Alpha Counter.
Date: 1946
Creator: Simpson, J. A.
Partner: UNT Libraries Government Documents Department

Bending Moment Due to Wind Pressure on Pole Chart 2A

Description: Chart showing bending moment due to wind pressure on poles for various pole heights, circumferences, and loading. It is enlarged from figures in NBS discussion of national electrical safety code (handbook H39).
Date: August 7, 1944
Creator: United States. National Bureau of Standards.
Partner: UNT Libraries Government Documents Department

Ultimate Resisting Moments of Wood Poles Chart 2B

Description: Chart showing the ultimate resisting moments of wood poles based on the circumferences at ground line for different kinds of woods. It is enlarged from figures in NBS discussion of national electrical safety code (handbook H39).
Date: August 7, 1944
Creator: United States. National Bureau of Standards.
Partner: UNT Libraries Government Documents Department

Catenary Chart 3

Description: Chart of catenary curve ordinates: "The curve gives approximate values of sag at all points on the catenary curve expressed in per cent of the center sag. The error is negligible for all spans in which the center sag is less than 10% of the span length." It is enlarged from figures in NBS discussion of national electrical safety code (handbook H39).
Date: August 7, 1944
Creator: United States. National Bureau of Standards.
Partner: UNT Libraries Government Documents Department

Segrè Chart [Isotope Chart]

Description: Chart showing type of radiation and isotope classification for each element, in a periodic table layout.
Date: 1948
Creator: Segrè, Emilio
Partner: UNT Libraries Government Documents Department

Fast Linear Amplifier Model B-3

Description: Report containing a diagram of the Model B-3 amplifier, outlining resistor values.
Date: 1947
Creator: U.S. Atomic Energy Commission
Partner: UNT Libraries Government Documents Department

Linear Amplifier Model B-1 - Model B-4

Description: Report containing diagram of a linear amplifier, outlining resistor values and other technical specifications.
Date: 1947
Creator: Argonne National Laboratory
Partner: UNT Libraries Government Documents Department

Nomographic Charts for Nuclear Reactions

Description: Charts that show neutron energy, laboratory or center of gravity angle, and bombarding energy for nuclear reactions.
Date: 1944
Creator: McKibben, J. L.
Partner: UNT Libraries Government Documents Department

Discriminator for Photographic Analyzer

Description: Technical drawing of frequency discriminators and image analysis for nuclear reactors.
Date: 1943
Creator: Sands, M.
Partner: UNT Libraries Government Documents Department

Model 260 Sweeper

Description: Technical drawing of signal generators for use in nuclear reactors.
Date: 1947
Creator: Sands, M.
Partner: UNT Libraries Government Documents Department

Pulse Unit Model 1

Description: Technical drawing of pulse circuits for use in nuclear reactors.
Date: 1945
Creator: Titterton, E. W.
Partner: UNT Libraries Government Documents Department

300 Mc Transmitter Pulser

Description: Technical drawing of pulse generators for use in nuclear reactors.
Date: 1947
Creator: Titterton, E. W.
Partner: UNT Libraries Government Documents Department

Video Amplifier & Scope

Description: Technical drawing of video amplifiers for nuclear reactors.
Date: 1945
Creator: Titterton, E. W.
Partner: UNT Libraries Government Documents Department

Cloud Chamber: Camera Lights Assembly

Description: Technical drawing of cloud chamber and ionization chamber for use in a nuclear reactor.
Date: 1946
Creator: Hering, D.
Partner: UNT Libraries Government Documents Department

Model 501 Amplifier

Description: Technical drawing of amplifiers and electronic circuits for use in nuclear reactors.
Date: 1946
Creator: Elmore, W. C.
Partner: UNT Libraries Government Documents Department

Model L.A.-100 C.R. Oscilloscope

Description: Technical drawing of oscilloscopes for use in nuclear reactors.
Date: 1947
Creator: U.S. Atomic Energy Commission
Partner: UNT Libraries Government Documents Department

Model 411 Scaler

Description: Technical drawing of counters and circuits for use in nuclear reactors.
Date: 1947
Creator: Sewell, C.
Partner: UNT Libraries Government Documents Department

Test Unit Power Supply

Description: Technical drawing of electronic circuits and power supplies for nuclear reactors.
Date: 1944
Creator: Sands, M.
Partner: UNT Libraries Government Documents Department

Battery Operated Field Pulser

Description: Technical drawing of pulse generators for use in nuclear reactors.
Date: 1945
Creator: Titterton, E. W.
Partner: UNT Libraries Government Documents Department
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