Need 15mm driver

I’m not sure you can use that trick in lighted tail.

Best is to put bleeder resistor on driver.

You can try to find capacitor on driver and “mod” it with pencil and see.

Yes, you can either lower the bleeder (strange enough) or increasing the tail resistors, to get your timing back. You do not want your bleeder too low because that gives a leak current when the light is on that makes your lowest modes pretty inefficient.

I found that the X5/X6 driver (with Attiny25) are very very finicky if a lighted tail is combined with modern low Vf leds or triples/quads (in fact then the driver feels low voltage too), then the lighted tail only works with high value resistors and very dim tail light.

On the other hand the BLF-A6 driver (with Attiny13) is way more forgiving and you can have pretty bright tail leds without problem (I use a 470 or 690 Ohm bleeder in this driver, depending on my mood).

Yup, it seems so, I’ll need to buy those :person_facepalming:
I just wanted to avoid buy 400 if I only need 2 or 3 resistors :person_facepalming:
Well, and the “damaging” driver possibility… LOL

Hum, I have 2 BLF X5/X6 drivers on the way, but I know they will probably work fine with the lighted tailacps, despite the values. I don’t need the light on the switch to be super bright, I just want to be able to find in the dark!
One of the lights will be used with a Luxeon V, while the other will probably be used with a triple MCPCB with XP-G2!

But these drivers:
a) Installed on a triple S2+: FET + 7135 Driver - 17mm - MTN-17DDm
b) Installed on Tool AA: FET + 7135 Driver - 15mm - MTN-15DDm

I really need them to be working correctly.

These are the lighted switches I have, ordered from Convoy Store.

Do you know if I need higher or lower resistors to make it work (the MTN drivers)?!

And sorry for being off-topic concerning the OP: 15mm driver :zipper_mouth_face:

The first one is Attiny13 based, so should be ok, the second one (for your Tool) is Attiny25 based, expect trouble with low voltage leds and triples/quads.

As said, the X5/X6 driver does not like triples or low voltage leds (Luxeon V is extreme low voltage) combined with lighted tails, expect it very very dim. That driver worked including lighted tail in the lights they were developed for because it was just a single XP-L in there, which has for today’s standard a fairly high voltage.

Thanks so much for the explanation djozz! I get you say now!!
This “modding” and assembling different parts has more to know than what I thought to make it work right!…

Just one question, though! The BLF X5/X6 will work “fine” with the Luxeon without the lighted tailswitch? Meaning, will the LED be “as bright as it can” or the output will suffer as well? Or even without the lighted switch it will not work properly?

My issue is not so much about the switch light intensity but more about the jump in the modes… (unless I only used 1 mode :smiley: )

If the lighted switch will mess with the Driver + LED functioning I will withdraw that option and use regular non-lighted switches! Functioning over beauty in my lights :stuck_out_tongue:

BTW, and as information, the 15mm MTN driver with Crescendo installed does not work properly with the lighted tailswitch (without resistors or other tricks…) :zipper_mouth_face:

Without lighted tail the X5/X6 driver should work fine, but I never checked it with the Luxeon V.

Thanks again for the answer! I will give it a try when they arrive :wink:
Thanks for clarifying these situations (to me, at least) :+1:

I have no idea what actually happens in those drivers, it is all empirical knowledge, having done many builds with these drivers and lighted tails.

“Flashlight science” is a lot about empirical knowledge (even when technical explanations are not available) :wink:
So thanks for sharing yours :+1:

I can make for you one of these if you are interested :

http://www.mtnelectronics.com/index.php?route=product/product&path=67_116&product_id=342

Max 1.75 amps , Biscotti firmware .

Interested. Can you give me price?
You can send it private if you don’t want to share :slight_smile:

Just the shipping :beer:

I’ll let you know when the driver it’s ready , could be today , or this coming weekend .

You are the best :beer:

I would be very interested for my Tool AA as well !
Do you have another one available ?

I think i have two boards left , but i have to look again .

Because it has 7135 chips on the back side , it requires a small spring or a brass button . Does Tool AA have enough space ?

I used one of these boards to make a 15mm fet driver too (single sided) , like djozz did with the 17mm version : comfychair-inspired quick+cheap+lazy single-sided 17DD FET-driver (poor man's nanjg92)

The Tool AA will benefit from a single sided driver, no springs, maybe just a button, if that doesn’t hinder the tube to touch the pill.
I ordered a 15mm MTN driver with Crescendo with bypassed spring for the Tool AA.
I had to take the spring out and had to add solder in the middle back of the driver (to connect the positive wire).

If you are going to use these double sided drivers in the Tool AA, be aware that the non-anodized part of the tube must touch the pill :wink:

If the driver is too thick, I’ll swap the optic for a TIR (shorter) and call it a day. …
I prefer to keep some sort of regulation with the 7135 instead of a FET

If you find your light is having flickering issues just bang it against your upper thigh ... oldschoolflashlightwisdom

Ok , let me make sure i have another pcb and i’ll let you know :+1:

Thanks !