3 ms·
The box has flaps lined with copper (https://www.instagram.com/p/B3Uwc9SHzot/?igshid=5dgayhtfayad https://www.instagram.com/p/B3Uwc9SHzot/?igshid=5dgayhtfayad).
by back7co 7y ago
The box has flaps lined with copper (https://www.instagram.com/p/B3Uwc9SHzot/?igshid=5dgayhtfayad https://www.instagram.com/p/B3Uwc9SHzot/?igshid=5dgayhtfayad). The box was a bit of a joke since I have no background in EE and couldn't find good reference material.