I C 8 P O F
Commander HF-2500 Linear Amplifier
mods & improvements

This amplifier is one of the best workhorses in the Ham RF_PA arena.
But as for every thing on this world, sooner or later it may happen a failure
and improvements are added as the daily use suggest.
In the following pages I describe my experiences and solutions with this fine equipment.

• links to the
  
  • Band switch and voltmeter repair.
  
  
  
  • LOAD Pi-L failure and improvements.
  During an RTTY contest in 40 meters the relative PI_L part has so much overheated
  that the toroid support has melted and the teflon wire had the cover broken in some curves.
  
  
  • The fault has been repaired.
    Also the poor ventilation of the PI_L toroid has been improved ( or i hope so)
    
  
  link to the repaired PI-L.
  
  

v1.11b - giu06 - set07 - mar10 - set10 - lug11