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Thus sound is converted into waves, and the receiving station, as you see here, with its aërial on the roof, its detector, its 'phone and its tuner, gets these waves and turns them again into sound. That is the outline of the thing, which you will understand better 'after' than 'before using.
It was not that he slouched nor shuffled nor that he was ill-made, though he was probably one of those unfortunates whom issue uniforms never fit. He carried a little black leather satchel, and it broke over Paula that here perhaps was Lucile's piano tuner. She half formed the intention to stay away another hour or two until he should have had time to finish.
By the way, I'm going to have your piano tuned when I go to town." "Perhaps." "Perhaps what? Perhaps I shall remember about the tuner? You'll see." "I may go back with the Waylands. I'm not at all sure that I shall not spend my winter on the Pacific." "Why, Madge! With your health you could spend it in Greenland." "That's what I may do. We always have a lovely green land in that climate."
"The making of the tuner, the wiring, the aërial and the assembling are all technicalities that may be mastered by a careful study of the subject and the result will be a simple and inexpensive set having a limited range.
My great-aunt taught me the names of the notes and got a tuner to put the piano in order. While the tuning was going on, I was playing in the next room, and they were utterly astonished when I named the notes as they were sounded. I was not told all these details I remember them perfectly. I was taught by Le Carpentier's method and I finished it in a month.
Adjusting the No. 2 Set. First adjust the crystal detector with the buzzer set as described above with Set No. 1, then turn the knob of your variable condenser so that the movable plates are just half-way in, pull the secondary coil of your loose-coupled tuner half way out; turn the switch lever on it until it makes a contact with the middle contact point and set the slider of the primary coil half way between the ends.
Nat had conveyed them to Paula and was returning with her answer. This was so flagrantly disingenuous that Mary smiled. "Who is the man?" she asked. The old servant shuffled his feet. "It's that good-for-nothing piano tuner, Miss Mary," he told her reluctantly. "I reckon you don't know much about him. He's been coming around a lot since you've been away.
The tuning coil, or oscillation transformer as this one is called, is a conductively coupled tuner that is, the primary and secondary coils form one continuous coil instead of two separate coils. It is fitted with one fixed tap and three clips to each of which a length of copper braid is attached.
The Frenchman hesitated a moment before replying; possibly thinking that what he was about to say would be novel, and hard for them to understand. "I was a tuner myself, a piano-tuner; my two sons here were clerks, Edmond in an office, Pierre in a shop." Clerks that was plain enough for anyone; but their minds were a little hazy as to the father's business.
After they had gone, Bob could not resist the temptation to go down and gaze with an approving eye on the shiny new tuner they had made, and dream of the many wonderful sounds that would soon come drifting in through that gleaming bit of mechanism. The Laytons had hardly finished supper that evening before Jimmy's cheery whistle was heard outside, and Bob jumped up to let him in.
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