References Oscilloscope history

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abramson, albert (1995), zworykin, pioneer of television, university of illinois press, isbn 0-252-02104-5 
burns, r. w. (1998), television: international history of formative years, iet, isbn 0-85296-914-7 
hawkins, nehemiah (1917), chapter 63: wave form measurement , hawkins electrical guide, 6 (2nd ed.), theo. audel , co. 
kularatna, nihal (2003), chapter 5: fundamentals of oscilloscopes , digital , analogue instrumentation – testing , measurement, institution of engineering , technology, isbn 978-0-85296-999-1 
spitzer, frank; howarth, barry (1972), principles of modern instrumentation, new york: holt, rinehart , winston, isbn 0-03-080208-3 















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