[Elecraft] [K3] Hum JT65/JT9 and Vox. Resolved.

[Larry Lopez]

I was wildly optimistic in this.
A second source of "hum" is the switching supply
of the laptop.

It's similar to the power supply hum.
Even though it's clearly a switching supply.

Curiosly the laptop need 12 volts.
So perhaps I can pick that off of the linear
power supply.

Or maybe run everything off of a battery.





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