Re: RC filter resistor

[Clearspring1-at-xxxxxxx (by way of Terry Fritz <twftesla-at-xxxxxxxxxx>)]

Hi all,

Perhaps I am missing something here about using a light bulb as a resistor in 
the HV circuit, but as Jim has pointed out one would need to choose a size 
that runs cold, as dropping anything over 120 volts across a standard house 
voltage bulb would shorten its life span very dramatically (I seem to 
remember the lifespan declining as the log of the proportion of excess 
voltage?)

Michael Tandy

> That said, something like a 150W halogen bulb or 300W halogen bulb might
>  not be a bad idea.  They are long enough that breakdown voltage isn't an
>  issue, and if you size it for the cold resistance, then you might have a
>  winner.