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DATONG MORSE TUTOR D70, Manual

The DATONG MORSE TUTOR D70 offers extensive functionality for learning Morse code effortlessly. This high-quality product comes with a comprehensive user manual, available for free download on manualshive.com. Obtain detailed instructions and maximize your Morse code skills with this indispensable manual.

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Summary of Contents for MORSE TUTOR D70

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Page 2: ...o learn each character as a complete sound pattern not as a set of individual dots and dashes It is important also to be able to receive Morse reasonably well before you begin to practice sending Start with Morse Tutor set to between 8 and 12 words per minute but with maximum delay between characters This way you learn the correct rhythmic sound of each character in the code list As you become fam...

Page 3: ...eed as described under battery replacement BATTERY REPLACEMENT When Morse Tutor produces all dots or all dashes the battery should be replaced First switch off the unit Then remove the top two screws on both front and rear panel and lift off the upper half of the case The battery can then be replaced Take care to observe the correct polarity WARNING When replacing the panel screws take care not to...

Page 4: ...and b under the control of the SPEED control The square wave from IC1b is converted into a single dot plus space one cycle of the clock or a dash plus space two cycles of the clock by IC2a and IC3b When pin 4 of IC2a is low dashes are produced and dot when pin 4 is high During the read out of a character IC5 counts up by one for every dot or dash from the number originally loaded into it by the st...

Page 5: ...or IC top pins can cause illegal letters to be produced b Some specimens of IC10 have resulted in random clock pulses which are too narrow to clock IC8 correctly This results in the illegal addresses 0 and 16 being accessed The pulse train at pin 11 of IC10 b should look symmetrical about 2 5 volts c If Q4 does not turn fully off Q3 can remain slightly on When VR2 is set to a high value this can c...

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