Seoul star isolation

Nell · Mar 16, 2007

I picked up a few Seoul from DX and wondering if I have to be concerned with the installation of the Seoul stars. Won't the star isolate the positive slug or am I mistaken. I was planning on using the thermal material that I normally use on PC cpu heatsinks if the electrical issues are ok.

thanks.

Nake · Mar 16, 2007

The Seoul stars from Photonfanatic isolate the pos slug, but are not the same as the DX ones. I would think they would act the same, but don't hold me to it.

JohnF · Mar 16, 2007

The Seoul stars I got from DX last week are isolated.

John F

Long John · Mar 16, 2007

You can test it with a DMM or 3V batterie

Best regards

_____
Tom

Calina · Mar 16, 2007

Long John said:
You can test it with a DMM or 3V batterie

Best regards

_____
Tom

Just a suggestion:
Maybe your comment would be more helpful if you explained how. Some modder don't have a lot of experience or electronics knowledge

.

EngrPaul · Mar 17, 2007

I just received some today. I verified they are isolated

chimo · Mar 17, 2007

Got mine yesterday from DX.

Isolated, but the slug is not well soldered to the star. I can see a gap under a portion of the slug and the star.

The slug is not soldered down - I can press on the emitter and close the gap.

Anglepoise · Mar 17, 2007

chimo said:
Got mine yesterday from DX.

Isolated, but the slug is not well soldered to the star. I can see a gap under a portion of the slug and the star.

The slug is not soldered down - I can press on the emitter and close the gap.

Was this a 'one off' situation?
The last thing one needs is an emitter that is not correctly attached to its star.
Do you know who was responsible ?

EngrPaul · Mar 17, 2007

chimo,

I did not have the same problem with 5 stars received so far. Very good color and output.

I hope you resolve your defect.

Paul

chimo · Mar 17, 2007

I purchased 2 stars. They both have the same "problem".

Nothing I can't fix, but I'm glad I noticed it before I decide to drive these hard.

They must be using thermal paste instead of epoxy (or solder) for the slug.

Paul

Der Wichtel · Mar 17, 2007

Same problem here. But I solved it by putting better thermal paste on it and superglued it on the sides

Seoul star isolation

Nell

Enlightened

Nake

Flashlight Enthusiast

JohnF

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Long John

Flashlight Enthusiast

Calina

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EngrPaul

Flashlight Enthusiast

chimo

Flashlight Enthusiast

Anglepoise

Flashlight Enthusiast

EngrPaul

Flashlight Enthusiast

chimo

Flashlight Enthusiast

Der Wichtel

Enlightened

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