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!!! General Radio [General Radio was purchased|http://www.ietlabs.com/genrad/index.html/] by [IET Labs|http://www.ietlabs.com/] in the year 2000. * [General Radio Historical Society|http://ietlabs.com/genradhistoricalsociety/] * [WMRA|http://www.jmu.edu/wmra-eng/gr-museum.html] collection of photos of GR equipment. * [Catalog 919|Upload:GrCat919.pdf] - Early catalog of Quality Radio Apparatus * [Bulletin 931|Upload:Gr1928_Bltn931.pdf] catalog of Quality Apparatus. 1928 * [1181-A|Upload:harold/20140716125223.pdf] Frequency Deviation Monitor. 1953. 8.6MB * [1606-A|Upload:GR1606a.pdf] RF Bridge. Scanned by Fred Greaves Jr. 49MB. * 1931-A Modulation Monitor * [Outside Photo|Upload:Gr1931A.jpg] * [Inside Photo|Upload:Gr1931aInside.jpg] ! General Radio Experimenter * 1926 * [Announcing a New General Radio Service for Experimenters - GenRad Experimenter 1926|Upload:harold/GenRad_Expermimenter_June_1926.pdf] * [The "B" Battery Eliminator - GenRad Experimenter July 1926|Upload:harold/GenRad_Experimenter_July_1926.pdf] * [The Design and Use of the Speaker Filter- GenRad Experimenter Aug 1926|Upload:harold/GenRad_Experimenter_Aug_1926.pdf] * [The Status of "A" Battery Retrofit Elimination - GenRad Experimenter Oct 1926|Upload:harold/GenRad_Expermenter_October_1926.pdf] * [An Effective Method of Measuring Amplification Nov 1926 - GenRad Experimenter Nov 1926|Upload:harold/GenRad_Experimenter_November_1926.pdf] * [An Effective Method of Measuring Amplification Nov 1926 - GenRad Experimenter Dec 1926|Upload:harold/GenRad_Experimenter_Dec_1926.pdf] * 1927 * [Design And Testing Of Plate Supply Devices - GenRad Experimenter Jan 1927|Upload:harold/GenRad_Experimenter_ Jan_1927.pdf] * [A Study Of Coil Resistances At 40 Meters - GenRad Experimenter Feb 1927|Upload:harold/GenRad_Experimenter_ Feb_1927.pdf] * [A Discussion Of Condenser Plate Shapes - GenRad Experimenter March 1927|Upload:harold/GenRad_Experimenter_ Mar_1927.pdf] * [New Tubes For Old - GenRad Experimenter April 1927|Upload:harold/GenRad_Experimenter_ April_1927.pdf] * [A Review Of Coupling Methods - GenRad Experimenter May 1927|Upload:harold/GenRad_Experimenter_ May_1927.pdf] * [The Design And Use Of The Radio Frequency Choke - GenRad Experimenter June 1927|Upload:harold/GenRad_Experimenter_ June_1927.pdf] * [Compete A.C. Operation A Practical Reality - GenRad Experimenter July 1927|Upload:harold/GenRad_Experimenter_ July_1927.pdf] * [Further Data On New A.C. Tubes - GenRad Experimenter Aug 1927|Upload:harold/GenRad_Experimenter_ Aug_1927.pdf] * [Unique Method Of Voltage Control Adapts Unit To Any Standard Type Of Receiver - GenRad Experimenter Sept 1927|Upload:harold/GenRad_Experimenter_ Sept_1927.pdf] * [Power Amplification - GenRad Experimenter Oct 1927|Upload:harold/GenRad_Experimenter_ Oct_1927.pdf] * [An A.C. Operated Amplifier With A High Quality Power Output - GenRad Experimenter Nov 1927|Upload:harold/GenRad_Experimenter_ Nov_1927.pdf] * [Factors Governing The Choice Of Power Tubes - GenRad Experimenter Dec 1927|Upload:harold/GenRad_Experimenter_ Dec_1927.pdf] * 1928 * [The Development and Use of the Hydrophone - GenRad Experimneter Jan 1928|Upload:harold/GenRad_Experimenter_Jan_1928.pdf] * [Equipment of the Service Laboratory GenRad Experimenter Feb 1928|Upload:harold/GenRad_Experimenter_Feb_1928.pdf] * [Factors Concerning the Use of the Type UX 250 Power Amplifier Tube - GenRad Experimenter March 1928|Upload:harold/GenRad_Experimenter_Mar_1928.pdf] * [A Phonograph Amplifier - GenRad Experimenter April 1928|Upload:harold/GenRad_Experimenter_Apr_1928.pdf] * [The Development and Use of the Hydrophone - GenRad Experimenter May 1928|Upload:harold/GenRad_Experimenter_May_1928.pdf] * [Magneto-Striction Oscillators - GenRad Experimenter June 1928|Upload:harold/GenRad_Experimenter_June_1928.pdf] * [A Direct to Consumer Policy - GenRad Experimenter July 1928|Upload:harold/GenRad_Experimenter_July_1928.pdf] * [Magnetostriction Oscillators - GenRad Experimenter Aug 1928|Upload:harold/GenRad_Experimenter_Aug_1928.pdf] * [Notes on Group Address Systems - GenRad Experimenter Sept 1928|Upload:harold/GenRad_Experimenter_Sept_1928.pdf] * [The Development and Use of the Hydrophone - GenRad Experimenter Oct 1928|Upload:harold/GenRad_Experimenter_Oct_1928.pdf] * [Rating of Radio Receiviers - GenRad Experimente Nov 1928|Upload:harold/GenRad_Experimenter_Nov_1928.pdf] * [How and Why the Talkies - GenRad Experimenter Dec 1928|Upload:harold/GenRad_Experimenter_Dec_1928.pdf] * 1929 * [Units of Electrical Transmission - GenRad Experimenter Jan 1929|Upload:harold/GenRad_Experimenter_Jan_1929.pdf] * [A New Relay - GenRad Experiimenter Feb 1929|Upload:harold/GenRad_Experimenter_Feb_1929.pdf] * [Frequency Determination - GenRad Experimenter March 1929|Upload:harold/GenRad_Experimenter_March_1929.pdf] * [A New Frequency Standard - GenRad Experimenter April 1929|Upload:harold/GenRad_Experimenter_April_1929.pdf] * [Permalloy - GenRad Experimenter May 1929|Upload:harold/GenRad_Experimenter_May_1929.pdf] * [Production Testing of Audio-Frequency Amplifiers - GenRad Experimenter June 1929|Upload:harold/GenRad_Experimenter_June_1929.pdf] * [The Importance of Mutual Conductance in Testing Vacuum Tubes - GenRad Experimenter July-Aug 1929|Upload:harold/GenRad_Experimenter_July-Aug_1929.pdf] * [Improving The Precision of Setting In A Tuned-Circuit Wavemeter - GenRad Experimenter Sept 1929|Upload:harold/GenRad_Experimenter_Sept_1929.pdf] * [A Low-Frequency Oscillator - GenRad Experimenter Oct 1929|Upload:harold/GenRad_Experimenter_Oct_1929.pdf] * [Notes On Power Measurement In Communication Circuits - GenRad Experimenter Nov 1929|Upload:harold/GenRad_Experimenter_Nov_1929.pdf] * [Television: A Comparison With Other Kinds of Electrical Communication - GenRad Experimenter Dec 1929|Upload:harold/GenRad_Experimenter_Dec_1929.pdf] <br> <br> ---- <br> Back to HomePage<br> Contribute Documents? <?plugin UpLoad ?> * [[Upload:harold/GenRad_Experimenter_Jan_1930.pdf]] * [[Upload:harold/GenRad_Experimenter_Feb_1930.pdf]] * [[Upload:harold/GenRad_Experimenter_March_1930.pdf]] * [[Upload:harold/GenRad_Experimenter_April_1930.pdf]] * [[Upload:harold/GenRad_Experimenter_May_1930.pdf]] * [[Upload:harold/GenRad_Experimenter_June_1930.pdf]] * [[Upload:harold/GenRad_Experimenter_July_1930.pdf]] * [[Upload:harold/GenRad_Experimenter_Aug_1930.pdf]]
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