. Practical wireless telegraphy; a complete text book for students of radio communication . Fig. 91—Condenser Jars in Parallel. 82 PRACTICAL WIRELESS TELEGRAPHY. by merely dividing the capacity of one jar by the number of jars in the cir-cuit, but if the jars have unequal values, the formula of reciprodals applies:. 1 1 1 C-1 C-2 C-3Therefore the capacity of the jars 1 of Fig. 92 1 1 Fig. 92—Condenser Jars in Series. .004 .002 .003= .00092 microfarads. 86. How to Place a Charge in a Condenser.—The condenser of a radiotransmitter may be charged from two sources: (1) By the step-up voltage induc
. Practical wireless telegraphy; a complete text book for students of radio communication . Fig. 91—Condenser Jars in Parallel. 82 PRACTICAL WIRELESS TELEGRAPHY. by merely dividing the capacity of one jar by the number of jars in the cir-cuit, but if the jars have unequal values, the formula of reciprodals applies:. 1 1 1 C-1 C-2 C-3Therefore the capacity of the jars 1 of Fig. 92 1 1 Fig. 92—Condenser Jars in Series. .004 .002 .003= .00092 microfarads. 86. How to Place a Charge in a Condenser.—The condenser of a radiotransmitter may be charged from two sources: (1) By the step-up voltage induction coil; (2) By the alternating current step-up transformer. The alternating current transformer is almost universally employed in radio sets tocharge the condenser, because it overcomes the limitations of the magnetic transformer can convert a practically unlimited amount of power into high voltagecurrent whereas the induction coil with a magnetic interruptor is limited to about 1 K. W. A condenser can be given a heavy charge by the apparatus shown in Fig. 93. A high-voltage A. C. transformer, 10,000 to 30,000 volts, is connected to the terminals of threecondenser jars, and when the current is turned on, a violent discharge takes place ^t thegap S-1.
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Keywords: ., bookcentury1900, bookdecade1910, booksubjecttelegra, bookyear1917
