William Bross wrote:
>
> Well, there are two in each bulb -- one blown and one good -- always the
> same ones.  The good ones certainly look like an NPN on the ohm meter.
> But, I could be wrong. I don't regularly play with SCRs and triacs.
> Tonight I'll trace out the circuit just for fun and see if I can calculate
> a suitable substitute if I don't get any hits.
> Thanks,
> Bill

Bill, try a 2SC2335, these are a good rugged
high volt transistor in TO220. We use them
a lot in TVs if we can't get the exact spec part,
as the 2SC2335 has better specs than most parts
in that package. They are common and cheap,
<$2 US.
-Roman

--
http://www.piclist.com hint: The PICList is archived three different
ways.  See http://www.piclist.com/#archives for details.