Quote:
Originally Posted by vortalexfan
I wasn't talking about a wall wart style charger, I was talking about the type that you can charge up and take with you to charge a phone or wireless earbuds when you don't have an AC wall wart to use, like the one pictured below.
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I didn't even think about those being a source of noise. I had my (tr)usdx HF radio plugged into one yesterday (for lower power output while I was tuning the reference frequency). Luckily my power bank isn't noisy.