Re: [TCML] RE: Terry Filter Problem

[Ed Phillips <evp@xxxxxxxxxxx>]

Hi Scott,

Looks like the NST outputs are making their way to ground bypassing 
mov's and RC circuit. See all those little copper pads on the solder 
side of the board? Anything between RC and MOV's need to be removed. 
These pads are a problem. Even all those pads around the main ground 
terminal. Might want to turn it upside down and run it with the lights 
off. One thing about these filters, they do need good isolation. Also, 
once carbon forms, the problem gets worse.

Take care,
Bart"

   Maybe, but...............  Notice that the heavy burned area is next 
to the ground terminal and that there isn't ANY obvious arcing between 
the end of the WW resistor and the red [gnd] wire in the vicinity.  The 
copper pads are clean and the insulation is normal color in the vicinity 
of the resistor terminal.  If I read things right the red wire is ground 
so the burned area is near the ground lug end of what's already a ground 
wire.

   Why use such expensive perf board, independent of the potential 
arcing between ground pads?

Ed
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