Russell McMahon wrote:
> SO
> WITH THIS BULB

Exactly.

The one I remember playing with was the high beam fillament of a headlight,
and it had rather different characteristics if I remember right (although I
may not).  It might make sense that the big fat fillament I was using falls
off much more quickly than the relatively much more delicate fillament you
tested.  Of course I may just be plain wrong remembering events from 35
years ago.

I have some old auto headlights with high beam only fillaments left, but not
where I am right now.  Actually this is something James should do on his
bulb.  It should only take a few minutes with a variable power supply and
multimeter.


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