Physics.- Johnson (Johan Bertrand) "A Low Voltage Cathode Ray Oscillograph"

Physics.- Johnson (Johan Bertrand) "A Low Voltage Cathode Ray Oscillograph", in Journal of the Optical Society of America, vol.6, pp.701-712, ex-library copy with ink-stamps, library half cloth, spine a little faded with paper label and glue stains, 8vo, Menasha, 1922. *** The first published description of a low-voltage cathode ray oscillograph, with an illustration of original apparatus diagrams. This work forms a direct precursor to the modern oscilloscope and is considered a key milestone in the history of electronic measurement. The volume also includes Arnold Sommerfield's early work on quantum theory "The Evaluation of Quantum Integrals", and Richard C. Tolman's "Review of the Present Status of the Two Forms of Quantum Theory".

Estimate:£100

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