At least those DX tubes are still churning out. I have few my self. Waiting for the lamp goes EOL on my HF fitting. It one tube i dont mind using on HF ballast. As those magnetic fail just as bad as HF when they are abuse.

So true..atleast they're still being made found a couple packs of these a few years ago at a ReStore(back when they used to sell fluorescents).

Thinking of EOL...I have one in the garage that just recently went EOL (need to get it swapped since it trips the thermal protection)

Back in 1996 I was in Orlando I remember seeing dimly lit 60w T12 8ft tubes, was suprised to see only 60w for such a long tube!