[BC] 802A series regulator failure

[Tom Taggart]

Jim Tonne's suggestion on the "overvoltage kit" makes sense.  Talked to  
Continental, they are sending me two kits (have the same exciter driving  
my 2.5H).  It's simply a bracket & zener hanging on the big filter cap, as  
Jim describes. I know neither unit has this modification. BTW, apparently  
the 802B should also have this configuration, as the power supply side is  
similar.

This site (the high school station) is at the end of a long power line  
run, right beside a water tank for a city water system.  The MJ3001 likes  
to pop as storms move through.  Likely two possibilities--lightning  
induced spikes on the power line, or some combination of line voltage  
variations after a power failure.  Possibly also coupled with a big pump  
starting up or cycling at the water tank as the power comes back.

We have MOV's on the incoming AC line, but it sounds like a simple  
over-voltage or even an under-voltage condition might be triggering the  
failure (which, of course, the MOV's aren't designed to protect against)

Haven't had any problems like this at my own site, but our feed is buried  
 from the pole, as that's what the landlord wanted. He takes hay off that  
hill for his sheep. Also we have more homes on that feed, which probably  
helps the load regulation.

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