I'm 59 married with four adult children, operate an ISP called Eskimo North. In the late 60's and 70's I built many vacuum tube projects from audio amplifiers to bootleg radio transmitters. I'm presently using solid state audio gear but it's a matter of economics and not preferences. I can't afford tube equipment at the power levels required to reproduce audio at the levels I enjoy. I find the sound of solid state amplifiers to be over damped, harsh, and somewhat unforgiving if even slightly overdriven. I've built many tube amplifiers and would build myself a nice high powered rig if only big output transformers weren't so bloody expensive. Anyway, I landed on this site following an image of a strange vacuum tube that I was unfamiliar with.