[Amps] why did Heath die?

Paul Christensen w9ac at arrl.net
Mon Feb 1 06:26:55 PST 2010


> Contrary to what some people may say, you don't need a state of the art 
> metal workshop.  The only metal working tools I use are a jigsaw, a file 
> or two and a drill.    You > can make decent cabinets and chassis like 
> this with just sheet aluminum, angle and a big bos of self tapping screws.

When I worked as a post-grad student for RKO Radio in Chicago, we produced a 
number of highly professional projects using nothing more than the tools 
David described.  For chassis and panel work, once the opening is roughly 
the size wanted, a file is used to carefully bring the rest of the opening 
within specifications.  After completion, our work was sent out for 
anodizing, and engraving with white-filled letters.

I still use this method today.  A small jigsaw is mounted upside down into a 
large vise to easily move the metal work around.  I am sure an OSHA (the 
occupational safety administration in the U.S.) inspector would have a few 
things to say, but the combination is locked down tight.  I suppose it's 
possible for the saw to become disengaged while operating in the vise, but 
with the right orientation of the vise handle, that risk is pretty much 
minimized.

Here's a recent example of a project that I sent out for engraving and 
anodizing.  Scroll down to the balanced antenna tuner cabinet:

http://www.qrz.com/db/w9ac

Paul, W9AC




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