As per this video .
If I were to build a simple electromagnet at a distance of ~1/4 inch from the tube:
- How strong would it have to be?
- What measurement of the electromagnet’s strength should I be concerned with?
If this were feasible at a ‘homemade’ level, what would be the recommended solenoid length, number of turns, power input, etc?
I’ve only a basic understanding of all things EM, so if I’ve left out any variables, please feel free to fill in the appropriate blanks.