If I get this built correctly, with the performance of these resistors, once the box is finished and calibrated it should be good for life. Because I would only be using it in the lab which regarding the temperature varies from 20 to 30 degrees C maximum.
The construction video will follow soon after I receive the aluminium enclosure, until then thank you for watching this and don’t forget to subscribe and hit the small bell icon to be notified of new uploads.