Hi Neil
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I now need to focus on some other things here for a week or two.? ?But I am satisfied that the fan modification is keeping things cooler than before.? ?And it's important to note that the fan is positioned close the two pre-driver FETs!? ?I'm reasonably sure the the increased cooling will keep this rig going for several years - and will probably outlast the rig's current owner!
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With best wishes
Steve G4ALG
Steve G4ALG