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  1. J

    Pa relacement on kl 203 amplifier

    I've just blown the 4 pa mosfets all dead short.....took one out a real pain as it was so so tight in printed circuit board.....so i have carefully cut the leads on remainder close to the mosfet devices.....and intend to solder the new ones when they arrive to the remainder of the old...
  2. J

    kl 203 linear amplifier

    Hi, Wonder if anyone else is using the 203 amplifier ???? mod done with 500 pf cap in place of C14 works fine on 60 meters/40 meters/20 meters...... not tried on 18 megs yet.....need bandpass filters......puts out 130 to 150 watts ssb with only a few watts of drive. Jim G4REK
  3. J

    kl 203 linear amplifier

    HI, WONDER IF ANYONE ELSE IS USING THIS AMPLIFIER?????? i HAVE DONE THE MOD AND IT WORKS REALLY WELL ON 60 METERS AND 40 METERS AND 20 METERS PUTTING OUT 100 T0 130 WATTS .... JIM
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