I could be wrong, but I don't think the PS fan is controlled by the
KPA1500 at all. The power supply itself is from a third party, and I
think the fan is integral to it, and probably also the fan controller.
73,
Scott K9MA
On 11/9/2018 16:52, Richard Thorne wrote:
As soon as the supply has a load on it a good bit of the noise is
reduced.
Maybe there's a way to put a small constant load on the supply?
Rich - N5ZC
On 11/8/2018 6:59 AM, eric norris via Elecraft wrote:
Why is the KPA1500 PS fan making so much noise when the amp is in
STBY and just the ATU is being used? What are those big boys cooling?
I'd hoped this would change with the new firmware but it did not.
Any hope for the future?
73 Eric WD6DBM
--
Scott K9MA
k...@sdellington.us
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