KPA1500 PSU fan speed mod a success

[Peter W2IRT]

Hi all,
Just wanted to reach out and say a great big THANK YOU to my good friend and
fellow NJDXA and FRC member Dave, WO2X for taking point and finding a fix
for my perpetually noisy KPA-1500 power supply fan. It had always been
annoying, but after the Covid lockdown and my wife had to work from home,
she was in the office/hamshack here 10+ hours a day, and leaving the KPA
powered up in standby was just too loud for her to concentrate.

It cost about $64 shipped to get the replacement front panel LED board,
which includes a higher-value 3W resistor that reduces the idling fan noise
to almost nothing now. It's a very simple mod that in retrospect I could
have done myself, but for me with my shaky hands and not-great eyesight it's
a big plus to have a friend like Dave who knows his stuff. If you have an
older KPA1500 and the PSU fans (not the RF deck fans) were driving you nuts,
this mod works great, and eliminates a big source of frustration.


---------------------------------------------
73 and Good DX
Peter, W2IRT



President, North Jersey DX Association

DXCC Card Checker
Letter O Manager, ARRL Incoming 2nd District QSL bureau

 

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