[Elecraft] Thermal control for Q1 / Q2 in KPA100?

[Vic K2VCO]

David Lankshear wrote:

> I note it blows air INTO the KPA, but there doesn't appear to be much
> by way of provision for the warmed air to get out, so I guess
> oscillators are going to move around quite a bit when the warm air
> circulates around and around.  Maybe a nice, quiet ex-computer muffin
> fan sitting on top of the heatsink might be a better way of cooling
> the PA?

The air gets out at the front of the heatsink, and blows across the fins 
a bit.  I like mine to run extra cool, so I attached a muffin fan to the 
right side of the heatsink, sucking air up through the fins.

-- 
73,
Vic, K2VCO
Fresno CA
http://www.qsl.net/k2vco