Erik Reuter wrote:
> 
> On Wed, Jun 25, 2003 at 10:34:43PM -0500, Julia Thompson wrote:
> 
> > All of the ones we've owned since we got married (and we got some
> > in 1991) were wired in parallel.  But if you pull a bulb *out*, all
> > of them go off.  Which can make decorating the tree with Star Trek
> > starships that plug into the light string interesting....
> 
> I've never actually bought parallel ones -- I've just seen them in the
> store.  That's interesting about a missing bulb taking them all out. I
> guess it is designed to short out the voltage source when a bulb is
> removed (maybe the socket electrodes are just leaf-springs that come
> together when there is no bulb?). I wonder if that is for safety, or
> just a design flaw?

I think it's for safety.

And if you have a string of 100 lights, it only takes out the half (50)
that that bulb was in.  (Not sure on strings of 200 lights, don't have
any of those.)

        Julia
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