[fredfish]

Daren. Are you going to do a series of readings over a period of time?

From my experience with CRT displays, there is a price to pay for over-driving in that the phosphors burn out (off?) sooner.

I suppose at $5 per tube vs $40 per tube, if your NO tubes last longer than 1.5 months, you are still ahead. Hmmm.

This could be interesting.

Fred.