Quote:
Originally Posted by matt99199
as for the resistor stuff, it works fine and would cost way too much with that many of them. i have had these signs running for half a year continuous and nothing went wrong or shorted out. it might be beacuse of the choice of transformer i used. so unless something cateoustrophic happens, i'm not worried about the current flow.
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You're missing the point.
Alan explained very clearly that you are not following accepted engineering practice. Logic dictates that you at least attempt to understand the correct method.
In other words: You've been lucky so far, but it's still the wrong way to do it.
Resistors are inexpensive
You've been lucky
It is not because of the transformer you used. You've been lucky.
You should be worried about current flow.
In today's litigious society even a high school kid can be on the losing end of a serious lawsuit. Just imagine your sign suffers a failure, and the resulting fire kills someone. A reasonable defense may be that you followed accepted engineering practice - but not doing so will really get you in hot water, particularly because it's a commercial product for sale.
Not trying to rain on your parade. Consider this a part of your learning process. No charge.