‰  NOW 13 WPM  ‰
UP TO 100 OF THE TUNE UP POWER, AND IT CAN BE DIFFICULT TO FIND THE
SUITABLE RESISTORS.   THIS CIRCUIT IS BASED ON THREE CADDOCK 50 15 W POWER
RESISTORS IN TO 126 PACKAGES.  THESE ARE EXCELLENT, NONINDUCTIVE POWER
RESISTORS.  IF YOU WANT MORE POWER DISSIPATION, A 30 W, TO 220 VERSION IS
AVAILABLE.  THE 15 W RESISTORS ARE FINE FOR SHORT PERIODS OF UP TO 25 W, IF
THEY HAVE APPROPRIATE HEAT SINKS.  THE INTERFACE THE IC 706 TUNE INTERFACE
IS VERY SIMPLE.  A 10 K RESISTOR FOOLS THE RADIO INTO THINKING THAT A TUNER
ƒ  QST DE W1AW  ‰
IS CONNECTED, SO THE RADIO IS KEYED IN THE 10 W CW MODE WHENEVER PIN 1 OF
THE ANTENNA TUNER INTERFACE IS GROUNDED BY THE SPST TOGGLE SWITCH.  I
MOUNTED THE 10 K RESISTOR DIRECTLY ON THE 4 PIN PLUG, SO ONLY TWO WIRES
NEED CONNECT RUN TO THE TENNA TUNE.  THE MOST DIFFICULT ASSEMBLY TASK IS
‰  FROM PAGE 97  ‰
WB5LYJ 222 2 2 1,120 NM N0EW 279 2 2 1,108 MO WR1B 92 2 2 944 RI N4GG 236 2
2 882 SFL K0CPN K0CQ 228 2 2 870 MO N2WDS N2XPG 194 2 2 688 WNY WA6HXM 138
‰  END OF 13 WPM TEXT  ‰  QST DE W1AW  ƒ