One data point.
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I have one of those 30v 10a CVCC bench power supplies from Amazon similar to this:
?
It's been very useful, but is much too noisy to power an HF receiver.
I have 12v wall warts that do better on the QMX.
A brick desktop style of power supply does have more room for parts,
and therefore more likely to work well for the QMX.
Asking for 12v at an Amp or more from something as small as the typical wall wart
is asking a bit much.
?
Jerry, KE7ER
