‰  NOW 20 WPM  ‰  TEXT IS FROM JANUARY 2017 QST  PAGE 32‰ 

GREATER PERCENTAGE OF ITS LENGTH SURROUNDED BY FERRITE CORE.  BECAUSE THE
CORE AREA IS DOUBLED, THE TURNS COUNT CAN BE HALVED.  THIS CUTS LEAKAGE
REACTANCE AND PARASITIC CAPACITANCE SOMEWHAT ALL TENDING IN THE RIGHT
DIRECTION.  SECOND, I SEPARATED THE PRIMARY FROM THE SECONDARY BY AN
ELECTROSTATIC FARADAY SHIELD TO STOP ANY CAPACITIVE INTERACTION BETWEEN THE
WINDINGS.  THIRD, I DESIGNED THE SECONDARY WINDING TO A VOLTAGE THAT IS A
FRACTION OF THE DESIRED OUTPUT VOLTAGE, AND THEN WOUND MULTIPLE SECONDARY
WINDINGS BASED ON THE INVERSE OF THE FRACTION.  THIS REDUCES LEAKAGE
REACTANCE AND PARASITIC CAPACITANCE.  EACH OF THE THREE 1100 V SECONDARY
WINDINGS OPERATES INDEPENDENTLY, IS RECTIFIED AT EACH OUTPUT, AND SUMMED IN
A SERIES CONNECTION TO GET THE DESIRED FULL OUTPUT.  THIS ALSO AVOIDS
‰  END OF 20 WPM TEXT  ‰  QST DE W1AW  ƒ