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An excerpt from Tanks a Lot! … inductor calculation program, 73 magazine, December 1977, pgs. 182-183

" … The program shown here carries out the above procedure starting b at .05 and incrementing it by .05 units after each calculation and comparison until the difference between tpi times length and turns changes sign, that is, crosses zero. Then it decrements b by .001 units and continues in the same fashion until the sign changes again, whereupon it stops and displays the number of turns. The result is, for all practical purposes, excellent. One must initiate the program by putting the various parameters in the memory registers, all ten of which are used with my SR-56"

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