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I did fancy ironin' in a hand laundry, was window demonstrator for an electric vibrator concern, did a turn as a dress model, and sold soda checks in a drugstore. They don't load you down on payday in any of them places; but that didn't worry me.
They had ornamented the roof of the house with a white flag, following the custom then prevailing in those parts threatened by the enemy. "They've been fighting all the morning," they said, wiping their eyes, "and now our men are retreating. Whatever will become of us?" I stabled my horse, walked to the fence, attached the vibrator, and called up Heilbron. No reply. The line was down again!
A condenser is connected across the contact points of the vibrator since this gives a much higher voltage at the ends of the secondary coil than where the coil is used without it; this is because: the self-induction of the primary coil makes the pressure of the current rise and when the contact points close the circuit again it discharges through the primary coil, and when the break takes place the current flows into the condenser instead of arcing across the contact points.
In experimenting with a vibrator magnet consisting of a bar of Stubb's steel fastened at one end and made to vibrate by means of a magnet, we noticed a spark coming from the cores of the magnet.
We now found that if we touched any metallic part of the vibrator or magnet we got the spark. The larger the body of iron touched to the vibrator the larger the spark.
As the motion of the vibrator is derived from the hand of the operator, and not from the pile, it will be comprehended that the latter can, everything being equal, produce a larger number of lightings than an ordinary bobbin and vibrator. Dr.
With Alternating Current. The operation of a transmitting set that uses an alternating current transformer, or power transformer, as it is sometimes called, is even more simple than one using a spark coil. The transformer needs no vibrator when used with alternating current.
Then the instant the vibrator points break apart the primary circuit is opened and the closed magnetic lines of force contract and as they do so they cut the turns of wire in the secondary coil in the opposite direction and this sets up another momentary current in the secondary coil in the other direction.
The student who does not intend to arouse himself need hope for no keen sense of beauty. The voice is, first of all, a messenger of spirit, and illustrates this in that quality which has given rise to the expression "borne on the wings of song." Ultimately the whole body will be conceived to be a sensitive vibrator responding with dramatic sympathy and returning vital radiance to the tones.
The wiring diagram C shows how the spark coil is wired up. One of the battery binding posts is connected with one end of the primary coil while the other end of the latter which is wound on the soft iron core connects with the spring of the vibrator. The other battery binding post connects with the standard that supports the adjusting screw.
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