Andy,
No, the KPA500 is a different design than the KPA100.
73,
Don W3FPR
On 1/5/2019 5:02 PM, Andy Durbin wrote:
From "KPA100 failure" topic -
"Thirdly, were the PA transistors tight? If not, the PA transistors will heat the
board around the transistors and not be thermally coupled to the heatsink. Are the
thermal pads properly in place? After initial assembly (and anytime afterwards if the
thermal pads are changed) you must re-tighten the screws after about 10 hours of
operation at high power."
Does the KPA500 need similar attention after the first 10 hours of use? How
long is the factory burn-in of KPA500 PA modules and is the security of the
mounting screws checked after burn-in?
Andy, k3wyc
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