Comments on: LED Flashlight PCB Contacts http://softsolder.com/2012/10/02/led-flashlight-pcb-contacts/ Ed Nisley's Blog: shop notes, electronics, firmware, machinery, and curiosities Fri, 24 May 2013 15:14:43 +0000 hourly 1 http://wordpress.com/ By: Ed http://softsolder.com/2012/10/02/led-flashlight-pcb-contacts/#comment-13581 Wed, 03 Oct 2012 11:29:56 +0000 http://softsolder.com/?p=11352#comment-13581

copper foil around the circumference

That PCB was as perfect a fit as you could imagine: even a shimstock sliver didn’t fit around the edge!

The next time one of those flashlights stops working, I’ll combine your technique with mine. I think a springy L-shaped contact around the edge of the PCB, with just enough filed off the board to produce a solid press fit. That way the PCB will apply pressure in the correct direction and it won’t come loose.

Thanks for the tip…

]]> By: Raj http://softsolder.com/2012/10/02/led-flashlight-pcb-contacts/#comment-13573 Wed, 03 Oct 2012 03:56:50 +0000 http://softsolder.com/?p=11352#comment-13573 If you make three tungsten copper L shaped contact springs and solder them to the three ground pads on the PCB and then insert it in the tube then the contact will be permanent. Alternatively a bit of copper foil around the circumference should work.

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