Homebrew PCBs

--- In Homebrew_PCBs@yahoogroups.com, "Stefan Trethan" 
<stefan_trethan@g...> wrote:

> and here is was wondering how i could produce very small holes, 
for very  
> small bubbles.
> It seems larger is OK, though small would be better for 
regeneration.


My dad showed me how to put very small holes in a cigar by passing 
the thing back and forth many times between the arc of a large, high 
voltage spark gap. ...it was clamped to the end of a long plastic 
rod of course, not held by hand.

Anyway, the arc punches so many holes that you can't draw air 
through the end of the cigar and it becomes impossible to light, but 
the holes are so small that you can't see them with the naked eye.

We had an uncle who used to light up these really smelly things 
after T-Day dinner... It still smelled, but it was worth it to watch 
him huff and puff.

It might not work on plastic tubing if the plastic gets warm enough 
to close the holes or if the insulative ability of the hose is 
enough to deflect the arc around the hose rather than through, but I 
thought it might be worth mentioning.