‰  NOW 7 1/2 WPM  ‰  TEXT IS FROM JANUARY 2016 QST PAGE 43  ‰

THE LED FORWARD CURRENT FOR THE LEVEL OF BRIGHTNESS YOU PREFER.  ICOM
RADIOS PROVIDE 8 V TO THE SM 20 MICROPHONE, SO I SET R5 TO 100 TO SUPPLY A
NOMINAL 10 MA OF LED FORWARD CURRENT.  R5 CAN BE REPLACED WITH A WIRE
JUMPER FOR RADIOS THAT SUPPLY ONLY 5 V.  BUILDING THE CIRCUIT  THE CHOICE
‰  END OF 7 1/2 WPM TEXT  ‰  QST DE W1AW  ƒ