[Elecraft] KPA500 - Advantage of min fan speed?

[Don Wilhelm]

Andy,

Physical fact related to any heat dissipating object -- if you apply an 
air stream across the object, it will not come up to a given temperature 
as quickly as having no air stream across it.

Specifically for the amp, if you run the fan speed minimum at 1, it will 
heat to the 55 degC threshold more slowly before switching  to level 2. 
Of course, from there on up to higher temperatures, there will be the 
same time period between the higher fan speed steps.

In other words, the fan minimum will NOT shift the entire range of 
thresholds, but it WILL delay the time to reach the level 2 threshold.

73,
Don W3FPR

On 9/30/2019 1:13 PM, Andy Durbin wrote:
> 
> I measured the fan speed thresholds over a year ago but that information doesn't answer the question about any operation advantage of running min speed  greater than zero.
>