Originally posted by sparafina
Here's a link to buiding a waveguide using a downspout instead of aluminin square tubing.
Originally posted by lincomatic
looks interesting. have you tried it?
Originally posted by peekitty
Might be cheaper to simply buy one, unless you've got access to a shop...
As for procuring the aluminum, I've scored some pretty exotic chunks of metal at local recycling yards, they usually charge by the pound.
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