"PeterD" wrote in message
...
On Thu, 11 Feb 2010 19:40:59 -0600, "Dave" wrote:
Hey all,

Thank you very much for the input, first of all. Secondly, I posted a
JPEG
of the starter (labeled "ignitor" on the cannister which holds the PCB and
ciruit I am about to referrence) to ABSE on 2/2/10 at 3:30 PM. There
pictured is the (failing) blue choke I replaced with a larger choke. The
one I took out *looked* like it might be a 60 or 75 uH choke, and I put
first a 100 uH choke in its place, and finally a 130 uH that would just
barely fit into the (plastic) cannister. In testing, the choke did not
seem
to generate any heat, and my logic was as follows: if it did cause the
starter (ignitor) to overheat it would bring about the demise of the
NTE2419
SIDAC bi-directional thyristor diode immediately to it's side (on the
right
in the JPEG) thereby shutting down the circuit. Below the PCB (in the
JPEG)
is the ballast, which I did nothing with. Since I was replacing a passive
component with a passive component, I wasn't too worried. Burn-in did not
raise any suspicions (1/4 hour of operation in my workshop). I would send
more photos (and try again to figure out this damn camera) but the light
is
currently in use. The experimenting I did with the light only seemed to
show that a lower inductance choke resulted in a more "yellow"
illumination,
and a higher inductance gave a "whiter" light. I can bring it down if
there
is truly cause for concern, just hate to do so unnecessarilly. And there
is
nothing in the diagram referrenced above like the small circuit I was
working on inside the cover of the lamp. Don't know what to think about
that...

Thanks,

Dave


Dave, can you post the fixture's name and model information? Or a link
to a reseller selling the same basic unit that one might be able to
research the circuitry?

I'll see what I can do. From memory is a Regent 70W HPS Security light.
Home Depot carries them. Has a brown "cap" and faceted canopy around the
bulb, thus to spread the light without harsh shadows. Looking for the link
to this product, but can't find it yet. Will keep trying...

Thanks,


Dave