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MN 2700 TUNER I HAVE NEVER USED THE DIRECT WIRE INPUTS ON ANY ANTENNA TUNER
I JUST USE COAX IN THE SHACK.  THROUGH EXPERIMENTATION, I FOUND THAT LONG
WIRES OR TWINLEAD INTO THE SHACK CAUSES RFI ON MY EQUIPMENT, SO I ALWAYS
PUT A SMALL TUNER OR TUNING CIRCUIT OUTSIDE AND RUN COAX FROM IT TO THE ANT
SWITCH INSIDE.  THIS LEAVES ME WITH TWO UNUSED ANT SWITCH POSITIONS ON THE
DRAKE MN 2700 TUNER, WHICH COULD BE CONVERTED TO TWO ADDITIONAL SO 239 COAX
ANT TERMINALS.  I MODIFIED MY TUNER TO ADD TWO MORE SWITCH SELECTABLE COAX
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ANT PORTS FOR A TOTAL OF FIVE BY REMOVING THE LITTLE FIBERGLASS PLATE ON
THE BACK CONTAINING THE THREE SCREW TERMINALS FOR WIRES.  I THEN FASHIONED
SMALL ALUMINUM PLATE TO FILL THE HOLE, AND I DRILLED THE PLATE TO HOLD TWO
MORE SO 239 COAX RECEPTACLES SEE FIGURE 3.  IF YOU LOOK AT THE ANT SELECTOR
SWITCH INSIDE THE MN 2700, THE LAST TWO SELECTIONS CLOCKWISE FROM THE ANT
SWITCH ARE FOR LONG AND BALANCED WIRE INPUTS, BUT THEY EMPLOY STRAIGHT
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