Radio for everybody; being a popular guide to practical radio-phone reception and transmission and to the dot-and-dash reception and transmission of the radio telegraph, for the layman who wants to apply radio for his pleasure and profit without going into the special theories and the intricacies of the art (1922)
Lescarboura, Austin C. (Austin Celestin), 1891- · New York, Scientific American publishing company [etc.] · leaf 186
by the buzzer, or,if the practice set has a visual indicator such as a lamp,watch the flash produced by the blinker, as it is called. Ina surprisingly short time smoothness and speed in bothsending and receiving will be developed. In some prac-tice sets a head receiver is worn so that the buzzes… … Buzzer practice set employed inlearning the radio code. This littleset is also provided witli a smalllamp which gives visual code signalswhen desired. 168 RADIO FOR EVERYBODY the beginner will note by studying the code chart thatdah de dah de—and not dash dot dash dot—is C, in-stantly, and that dah…
Radio
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