Morse Transmitter MG 23 (1950) | |||
These devices were mainly used for learning and exercising the Morse code. The Morse transmitter sends the Morse codes punched into a Wheatstone paper tape over a transmission line or over a radio channel to a receiver which records the transmitted Morse codes. The holes punched into the tape are sensed by feeler levers, which close an electric contact when they sense a hole. By means of a relay circuit it is detected, whether the two holes are one above the other or are separated by one position. Correspondingly a short or long sound signal is sent on the line. The transmission speed can be adjusted between 60
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to 220 characters per minute. In addition, the pause between the characters can be adjusted The Morse transmitter was not only used for learning and exercising, but also for regular trans- |
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Demonstration of the morse devices |