Nikola Tesla Books
Books written by or about Nikola Tesla
68 Plan 14-20 14-20 HIGH FREQUENCY APPARATUS ° + Silver Details of springPhosphor bronze + & + Side elevation Front elevation Fig. 10.-Details of the interrupter one and the manufactured article can be purchased so cheaply that the amateur builder is not justified in making one. The standard telephone condenser of 1 mfd. capacity is approximately correct in capacity and if four more sections of .5 mfd. each are added, the necessary range of adjustment is obtained. If the builder wishes to make his own condenser, he may purchase 250 sheets of heavy paraffined paper such as is used to wrap candies in. This paper may be cut to form 500 sheets of paper 8 x 10 in. in size. The tinfoil
