What did you mod today?

Today I fixed a BLF-X5/X6 driver from dropping out of turbo.

In another thread I asked how to fix the BLF-X5/X6 driver from dropping out of turbo in a hight drain triple and I was lucky to get an answer from DEL :-) , it may have been mentioned elswhere on BLF but I had not read it before :

I have a red S2+ shorty that I converted to 18500 cells and has a lighted tailcap (mod here), it worked fine on an Efest purple high drain 18500 IMR cell, but it had the turbo-drop-to-moon problem on the Sanyo UR18500F and NCR18500A cells that are not so high drain.

So today I tried the adding of a resistor between C1/D1 and led+, 'tomb stone style' . The pyramid had to be really shallow because the pill cavity was minimal due to the 18500 conversion, so the solder blob on top was filed down to a minimum. Also, to prevent the touching of the pyramid to the shelf under the ledboard I sticked a disc of Kapton tape inside the pill.

First I soldered C1 vertical on its ground pad, then I unsoldered D1 from its led+ pad and soldered it leaning against C1. Then the 10 Ohm resistor was soldered between led+ (the old and now vacant D1 pad) and the top of the pyramid. The top was then filed as low as possible without damaging the components.

And it worked alright :party: , the drop to moon problem is gone now. When entering turbo, the subtle ramping-up that precedes every mode change in Bistro is not as smooth as on the lower levels, but it stays in turbo alright on all cells now.

Thanks DEL, I can solder alright, but electronics mostly is magic to me.