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- Instructograph abstract "The Instructograph was a paper tape-based machine used for the study of Morse code.The paper tape mechanism consisted of two reels which passed a paper tape across a reading device that actuated a set of contacts which changed state dependent on the presence or absence of hole punches in the tape. The contacts could operate an audio oscillator for the study of International Morse Code (used by radio), or a sounder for the study of American Morse Code (used by railroads), or a light bulb (Aldis Lamp - used by Navy ship to ship or by Heliograph).The Instructograph was in production from about 1920 through 1983. The latest version of the Instructograph was the model 500 which included a built in solid state oscillator. This model was available to be purchased as new through at least 1986.".
- Instructograph wikiPageExternalLink cp177.htm.
- Instructograph wikiPageExternalLink instructograph.pdf.
- Instructograph wikiPageID "7069468".
- Instructograph wikiPageLength "1058".
- Instructograph wikiPageOutDegree "8".
- Instructograph wikiPageRevisionID "516190580".
- Instructograph wikiPageWikiLink American_Morse_code.
- Instructograph wikiPageWikiLink Category:History_of_telecommunications.
- Instructograph wikiPageWikiLink Category:Morse_code.
- Instructograph wikiPageWikiLink Heliograph.
- Instructograph wikiPageWikiLink Morse_code.
- Instructograph wikiPageWikiLink Punched_tape.
- Instructograph wikiPageWikiLink Signal_lamp.
- Instructograph wikiPageWikiLinkText "Instructograph".
- Instructograph subject Category:History_of_telecommunications.
- Instructograph subject Category:Morse_code.
- Instructograph hypernym Machine.
- Instructograph type Software.
- Instructograph type Encoding.
- Instructograph type Mode.
- Instructograph comment "The Instructograph was a paper tape-based machine used for the study of Morse code.The paper tape mechanism consisted of two reels which passed a paper tape across a reading device that actuated a set of contacts which changed state dependent on the presence or absence of hole punches in the tape.".
- Instructograph label "Instructograph".
- Instructograph sameAs Q15995190.
- Instructograph sameAs m.0h2sbv.
- Instructograph sameAs Q15995190.
- Instructograph wasDerivedFrom Instructograph?oldid=516190580.
- Instructograph isPrimaryTopicOf Instructograph.