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150w SON Choke Thermal Profile Having a look to see how hot the Tridonic dual-tap 100/150 SON choke gets in my DIY gearbox. Not as hot as I would have thought but then again it was never too hot to touch. Also nice to see no high resistance points in my wiring but it's not really pulling that much current anyway, my 1000w+ gearboxes may be a different story!

150w SON Choke Thermal Profile

Having a look to see how hot the Tridonic dual-tap 100/150 SON choke gets in my DIY gearbox.
Not as hot as I would have thought but then again it was never too hot to touch.
Also nice to see no high resistance points in my wiring but it's not really pulling that much current anyway, my 1000w+ gearboxes may be a different story!

853DA260-7BA0-4F0A-B8BE-372B676B3440.jpeg DSCF1055.jpg IMG_3208.jpeg P3_251028_091832_860.jpg Photo_09-02-20262C_10_46_23.jpg
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Filename:IMG_3208.jpeg
Album name:FrontSideBus / Miscellaneous
Filesize:890 KiB
Date added:15 Apr, 2026
Dimensions:1557 x 1168 pixels
Displayed:105 times
URL:http://80.229.24.59:9232/gallery/displayimage.php?pid=24551
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Comment 1 to 9 of 9
Page: 1

Oliver   [15 Apr, 2026 at 07:45 PM]
Looks like the box is acting as a good heatsink.
AngryHorse   [15 Apr, 2026 at 08:33 PM]
Do you have any VS ballasts?, I’d like to see the thermal profile of one of those? Cool
FrontSideBus   [15 Apr, 2026 at 08:34 PM]
I have a couple I could dig out.
AngryHorse   [16 Apr, 2026 at 08:27 AM]
Especially the 150/250 version Cool
dor123   [16 Apr, 2026 at 09:23 AM]
Why the ignitor heating when the lamp operating?
AngryHorse   [16 Apr, 2026 at 09:55 AM]
If it’s superimposed the full lamp current will be going through it.
FrontSideBus   [16 Apr, 2026 at 02:09 PM]
Indeed. It's potted too so whatever is it there will warm up.
Beta 5   [16 Apr, 2026 at 03:06 PM]
Is it set to 100 or 150W here? it would be interesting to see what temperature difference there is between the two settings.
FrontSideBus   [16 Apr, 2026 at 03:31 PM]
It was 150w IIRC.

Comment 1 to 9 of 9
Page: 1

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