[Elecraft] Fan Source for Auxiliary Fan

[Lee Buller]

The PC power supply fans are to big for my K2...or at least my tastes.  I 
like the fans that are on the CPUs.  These are the 50 mm fans and run 
fairly quiet.  They will move enough air over the heat sink without blowing 
you out of the shack.  You can lower the speed of the fan by putting a 
resistor in series and lowering the voltage to 10 volts.  Some of these 
fans come with Molex connectors already and can be use quickly.  I mounted 
two on a piece of aluminum angle stock and positioned them centered on each 
half of the heat sink.  I put some felt self-stick pads on the aluminum 
stock so I would not scratch the finish on the K2.  I dubbed it the K2 
Kontest Kooler.  You don't need the fan(s) at all for normal everyday 
use...but you start CQing and running rate...you will heat the K2 pretty well.

Lee - K0WA