Mini-match gets infinite brightness via QTC

If the stuff does not have any noticeable power loss when current passes through ant any pressure level it is truly an outstanding material.

Fascinating!

The technology that makes touch-screens work adapted to flashlight applications. A loss-free dimmer switch... I'm getting ideas...!

Now, where do I get the stuff, and how to work with it?

There are various places sell it, or PM me.

Amazing as usual , how do you manage to not burn the emitters with two 14500 , relying in the internal resistance of the battery ?

Match is my idol.

Wow! Thanks for the positive responses, Guys! Let me try and answer some of the above questions:

[quote= Jekostas]

Just a thought, but this would work with a standard incan AA-mini mag with an LED upgrade, wouldn't it?

[/quote]

Yup. I actually used it first on a bone stock incan mini-mag, and it worked fine. Lowest setting would barely dribble yellow light out the end...

[quote= Budgeteer]

how did you manage to "prevent" the loss of energy on the resistor?

[/quote]

By using fairy dust and unicorn piss.... On a more serious note, I think there may be a misunderstanding out there on exactly what goes on in a series circiut. Edit: Just deleted huge wall of technical text...

Think of it this way: Adding a QTC is like having variable internal battery resistance. We're only controlling how much current can come out at any given moment. In the same way that the "internal resistor" of the battery doesn't waste power, neither does the QTC.

[quote= Arenat]

how do you manage to not burn the emitters with two 14500?

[/quote]

I'm still using the single mode buck driver from the original build.


I agree with that!

Cool! are you physicist or something like that?

It is truly a wonder material if it acts like a current regulator per se without wasting energy. Still have my doubts that the losses are so small but could be.

Hows the liftime of the thing? 1000+ squeezes?

"Cool! are you (Don) physicist or something like that?"

He has a degree or vast knowledge in almost anything that has to do with science or chemistry and beer or ale (never understood what's the difference)

Traditionally here, beer has hops in it, ale doesn't. Though this seems to vary around the world.

Oh that's it? I guess ale is less bitter and aromatic? Not something i would like a good beer lacks...

I already did. And am happy to pass them on at cost. I can easily get more in under a week in people want them.

Today's sterling dollar exchange rate is as bad (for sterling users) as I've seen it in years. They cost 18p each and 20 of them will ship for 76p airmail. They are very small and light so 20 of them will weigh less than 2 grammes. I don't think I have 20 uncommitted so I'll order some more (Minimum order works out at 70 of them).

Paypal is fine for payment.

I've just ordered 100 more QTC pills at a cost of $35.16 delivered to me. Up to 30 of them delivered to most of the world will cost $1.25 for postage. I can easily get more if people want them. I'm quite happy to sell them at cost to me.

Prices:

5 delivered: $3.01 plus paypal fee.

10 delivered: $4.77 plus paypal fee.

20 delivered: $8.28 plus paypal fee.

I'll start a new thread with this info in the seller's spot.

Has anyone tried one of these in a Fenix E01? I know it has a spring, but it would be great to dim one of these.

Trying it now.

Doesn't seem to work - it still just goes on or off - this may be poor placement of the pill or the boost circuit working harder. I just placed the pill on the head's + contact and screwed the body and cell down onto it. If I can think of a better way, I'll try it.

Probably the circuitry boosting the cell up-the E01 is a cell vampire.

My thought too. I'll need to improvise a better mounting though and try it more thoroughly later. My E01 gets a new cell every year or so whether it needs it or not - just don't want them leaking in the light.

Yeah, I have had several battery leaks, even from new batteries. Some people just use dead cells in their E01's for the dimmer output.

Thanks for checking/evaluating. Trying to think if I've got any other single modes besides the mini-mag led and Gerber IU. The Gerber has a bunch of fine thread, but I think it has a spring on both sides.

I don't trust dead alkalines not to leak and my E01 has been on my work keys since they were announced - well, since they were announced and the one I pre-ordered arrived. The anodising is holding up pretty well for something like 4 years on a keyring.

I know I'm late to the party as usual, but this has got to be the coolest thing I've seen all month. Way to go, Match! :)