[Amps] SB-220 troubles

[k7fm]

"Yes I am one of those safety first guys also a engineer by training and
spent a lot of time in the aviation industry where there are no second
chances to do it right "

There is a big difference between operating a high voltage supply without 
any covers on it and operating a supply with a cover and lots of screws, 
especially when it has danger high voltage signs on it.

Comparing it to the aviation industry, I regularly start the engine of my 
friend's aircraft by propping it.  The prop does not have any safety screen 
around it.  I could trip and cut my head off.  I could sneeze at the wrong 
time and lose an arm.  I am much more concerned about that than the 
possibility of removing a dozen screws while I am sleeping and not grounding 
out the caps before working on the set.

As to opening up the set during a 2 day contest and forgetting all sense of 
self-protection, it is no more likely than going out to cut wood with my 
chain saw after a drinking binge.

When I was a kid, I used to ride around in a car without a child restraint 
and without air bags.  I drank from garden hoses made with lead, no doubt 
played with toys made with lead and dove from bridges.  I climbed towers 
that did not have protective devices and even ate eggs and hamburger that 
were not cooked.

The thing is, that a safe person will assume that the protective devices 
have all failed - so take the proper precautions whether or not the devices 
are installed or removed.

I leave the protective devices in place, but I do not blame anyone for 
removing them and I certainly do not want to lecture him that my ideas on 
safety trump his.

73,  Colin  K7FM