[time-nuts] time-nuts Digest, Vol 190, Issue 30

[Dave B]

Hi.

They call them "Low" noise, not No noise!  If you want/need the latter,
then it's a linear regulated supply, or battery.

Also sceptical that the "review" is hosted on the same site that is
selling them...

Look at the figures, for the same conditions, they tell the story, as do
the spectrum plots.

And as for that Astron regulator "ringing" when the load does a step
drop, that's not good.

No affiliation either way, just saying..

73.

Dave G0WBX (a KX3 owner.)

On 18/05/2020 17:00, time-nuts-request at lists.febo.com wrote:
> Date: Sun, 17 May 2020 12:53:42 -0600
> From: Eric Scace <eric at scace.org>
> To: Time Nuts email list <time-nuts at lists.febo.com>
> Subject: [time-nuts] potential low-RFI power supply
> Message-ID: <C1DDF9AF-78D7-4DF1-876B-4FAE5F398D65 at scace.org>
> Content-Type: text/plain;	charset=utf-8
>
> Pro Audio Engineering announced a sale (through Friday) on its nominal 14 Vdc 4A switching supply <https://proaudioeng.com/products/pae-kx33-low-rfi-ac-power-supply/>. The test results <https://proaudioeng.com/products/pae-kx33-low-rfi-ac-power-supply/> webpage compares noise on the DC output and noise frequency spectrum under a variety of conditions with a lead-acid battery, an Astron linear supply, and a variety of switching supplies from other manufacturers.
>
> I have not used this and can?t vouch for its performance. Given recent discussions here on supplies, the analysis might be interesting. At least the supplier has attempted to quantify the performance of its power supply and make that information available to the prospective purchaser.
>
> It would be interesting to see comparable (or more suitable) measurements made by others posted here.

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