[Elecraft] [KPA1500] Power supply filter tip

[Warren Merkel]

I thought I'd mention a tip I've done to filter out fine dust from being 
pulled into the KPA1500 power supply.  My unit runs 24/7 and I was 
surprised how rapidly the fan grid on top of the power supply gathered a 
circular collection of dust, even though the floor is tiled.

I picked up a package of washable foam filter material at the home 
store.  It is normally used as a replacement air conditioner filter.    
Here are a few shots.   Looks like it's time to wash it again...

https://i.postimg.cc/h4kzMjxf/KPA1500-filter1.jpg
https://i.postimg.cc/4xMrHrjk/KPA1500-filter2.jpg

Warren Merkel, KD4Z