Modifying the DX LED lantern, Adding a heat sink

[Norm]

Do you have one of these?

The Cree is only sitting on a small circuit board without any heat sink.

Remove the Cree from the circuit board, remove the excess length from the
switch pins and AA to a TO9 transistor heat sink.

I haven't resoldered the leads yet, just waiting for the AA to set. I know it's
not a huge heat sink, but it would have to work better than the original set up.

I have it all back together now, I did have to drill new the holes
for the leads as the old leads are under the heat sink,
but there is plenty of room, 2 seconds with a 1mm drill bit.
Norm
​

 

[glockboy]

Thanks, still waiting for my.

 

[TigerhawkT3]

Very neat! Kind of makes you wonder why they didn't do that in the first place.

:thumbsup:

 

[Erasmus]

"TO9 transistor heat sink" can you tell me where to get these for cheap?

 

[chesterqw]

wow....

imagine those with a lathe and/or mill and have copper or alum raws with them...

i think their heat sink will be massive

 

[Norm]

"TO9 transistor heat sink" can you tell me where to get these for cheap?

Mine were out of the parts draw, probably 30years old, but I'm sure any component supplier would have them, even Tandy in Australia sold them years ago. I hope I'm right saying TO9, I'm sure that's the designation.
Norm

 

[ktronik]

Nice work Norm...

now you have a heatsink, why not replace the cheap driver & use 4 lithium AA cells in a 4p or 2p2s config?? (depending on driver used)

come on buddy, herb her up a bit more... :thumbsup:

best

Ktronik

 

[Tidra]

This is such a cute lantern, I would like to by one, can someone please take a picture, to se how it actualy throw light.

Thakn you
Iztok

 

[TITAN1833]

Tidra,there you go.