[R-390] Interesting find in my Cosmos PTO

Barry n4buq at knology.net
Wed May 17 00:30:56 EDT 2006


In order to facilitate replacement of the parts in this particular PTO, I
removed the surrounding hardware (brackets, etc.).  I then took a much
closer look at the innards.  Point your browsers to the following address
and look at the two pictures there.

http://www.knology.net/~thelanding/

In PTO1.JPG, notice how the lead from the bypass capacitor appears to be
touching the frame.  Note that this is NOT the ground side of the capacitor.
PTO2.JPG show the same area from the "top".

I have not moved the lead yet nor checked anything else (too late in the
evening), but I'm guessing if I move this lead so that it isn't touching the
chassis, I may see some rise in the output level.  At any rate, it looks
like this has been there from the factory and it's just a wonder to me it
works at all.  I'm actually surprised there isn't close to 200VDC on the PTO
chassis, but I'm also guessing that the wire isn't actually making solid
contact with the chassis since I have the correct plate voltage; however, it
sure is close to the chassis to not make contact.

Barry - N4BUQ



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