[Elecraft] K2 KPA100 fan replacement?

[John Farmer]

Hi Sverre,

 

I did have a look at this but discovered that the options for alternative
30mm fans are limited compared with larger sized case fans.  There's no
Noctua 30mmx10mm fan. 

The Evercool fan in the KPA100 runs at 8000rpm.  I suspect these smaller
fans are inherently noisier. The timbre of the sound they emit in full
flight sounds harmonic rich and higher pitched, so

it's more noticeable if you have well preserved high frequency auditory
acuity :).  I use my K2/100 for QRP only, because if I work CW at 20W or
more, the fan runs pretty much continuously on Tx.

 

73,

John

VK7JB