On 18/12/2020 21:20, Brian Gaff (Sofa) wrote:

I guess I could buy from Apple and hope their standards are still high, or
if anyone knows of a good source for non interfering ones I'm all ears.

Poundland's USB charger at £2 might be worth a try. Despite the low
price Big Clive spoke very highly of it including commenting favourably
on the filtering when he did a teardown on YouTube. I appreciate you
won't be able to see the video Brian but you might pick up a few details
from the audio.

https://youtu.be/aS1pwoVdRh4