‰  NOW 13 WPM  ‰   TEXT IS FROM JANUARY 2014 QST PAGE 43  ‰

THE EL ROTATOR.  THESE CUTS ARE EASY TO MAKE WITH A HAND HACKSAW, AND THE
ROUGH EDGES CAN BE CLEANED UP WITH A METAL FILE.  YOU WILL NEED TO DRILL 11
HOLES IN THE ROTATOR CHASSIS BOX ALONG WITH SOME HACKSAW, DRILL, AND TAP
WORK ON TWO METAL BRACKETS MADE FROM HOME IMPROVEMENT STORE ALUMINUM STOCK
SUPPLIES.  FINALLY, A FEW PVC PIPE FITTING PARTS REQUIRE SOME DRILLING.
THE AZIMUTH AZ AND ELEVATION EL ROTATOR POSITIONS ARE DETERMINED BY THE
WIPER POSITIONS OF WIRE WOUND POTENTIOMETERS THAT ARE CONNECTED TO THE
ƒ  QST DE W1AW  ‰
MOTORS BY A PAIR OF 3650 RATIO GEARS.  MAKE THE BRACKETS FOR ACCURATELY
MOUNTING THE POTENTIOMETERS FROM CIRCUIT BOARD MATERIAL.  THE CIRCUIT BOARD
DESIGNED FOR THIS PROJECT INCLUDES OUTLINES AND PILOT HOLE LOCATIONS MARKED
FOR THE TWO BRACKETS, AS SEEN IN FIGURE 2.  SEPARATE THESE TWO BRACKETS
FROM THE MAIN CIRCUIT BOARD USING A BAND SAW.  THE AZ ROTATOR IS A 1 RPM
MOTOR MOUNTED INSIDE THE ROTATOR BODY ENCLOSURE ALONG WITH THE ASSOCIATED
‰  END OF 13 WPM TEXT  ‰  QST DE W1AW  ƒ