matt h wrote:I know we're supposed to be mocking it...
But thinking about the concept, perhaps not the implementation--something like a tube (or in other applications, though thinking C shape with narrow cut) could be a useful in some areas of an amp.
I certainly see the joke at hand, but as concept? could be developed into something that is, in some less common uses, functional. 
It would be hilarious, though, to see that sort of tubing used with the long-brass-rods that whatever-mfg-that-was used for parallel heater runs in the same amp.
Well our correspondent Randall, now of Cape Coral, made himself a terrific DR using what appears to be thin copper pipe as bus bar. Gets my full approval: that's a mighty FAT ground bus. 
 
Then there's our old pal Gerry the microindustrialist - his custom builds looking very steampunk with lots of decorative/structural copper pipe bits.
I suppose it would be a hoot to see filaments inside an antique looking amp with "knob & post" wiring like what old houses were wired up with, before BX cable became the norm.
If you want to bore yourself with some less than edifying threads, which comprise one incredibly lengthy discussion approximately the length of War and Peace, just look up correspondent "Wil" on our parallel hell site Music Electonics Forum. You'll see this poxy DRRI amp and everything that's happened to it since about September 2012. Still doesn't work. That should tell you everything you need to know. Honest, we have better things to do. Wil's been told a hundred times "get professional help" but won't do it, and comes back to MEF for more sympathy. Must be sympathy because all the "education" he's gotten, hasn't been sinking in. "Junior's head's as hard as rock" to borrow a phrase.
down technical blind alleys . . .