We actually tried that experiment; the tubes we had were a little older, so not sure how much that affected it vs the power at this site (the middle tower is 7

We actually tried that experiment; the tubes we had were a little older, so not sure how much that affected it vs the power at this site (the middle tower is 7 kW, which is a lot less than the 50 kW towers at more mid/high power AM sites). But it didn't light up near the tower. It did near the RF circuits above the phasor, though!