A degree of AC on you LED?

[TinselKoala]

Hi Bill
Yes, often the subjective values are all that we are really interested in. If it "looks brighter" and we are interested in the illumination, that's all we really need.

I was only balking at the statement that "there isn't that much juice in the battery" which sort of sounds like an "overunity" claim...and I don't believe the Joule thief is OU.

Thanks for not freaking out at a little criticism. You know, I hope, that I mean well...

--TK

[jadaro2600]

Thankyou all for your replies..

I've looked into the youtube video ..perhaps we're thinking along the same lines; or maybe not.  the jtc looks a bit strange, but i'm a newbie.

I'm attempting to create an equivalent brightness using AC as would be with DC but using less over all power.

Intrinsically, generating AC will have it's drawbacks, or losses involved. etc.  I've read that a diode will act as a capacitor given a reversal of normal current flow, but in reversal situations there is heat dissipated.  Heat = loss of usable electricity.

I was thinking about half the current would due if a LED could be set into a resonant mode.  The circumstances being right ..a resonant LED wouldn't overheat and the eyes would smooth out the frequency... and hopefully not cause seizures.

Given the right forward current and perhaps a reverse current less than that of the forward current and the LED could be brought to resonance.

TK - indeed, 30ma is enough to blind someone using the right kind of LED; i think 20ma is sufficient - especially for green LEDs.

..I would try not to mention the JT circuit over the phone, just say the name out loud and you sound like a criminal.  "Yea, i've been working on the JTC".  Word of warning. LOL  is this one of those slammers, where they fly in with the helicopters?

[TinselKoala]

Try dipping the LED, while lit, into Liquid Nitrogen. It will get MUCH brighter for the same current.

[Pirate88179]

TinselKoala:

Really?  Would we see any visual improvement using less severe cooling methods like ice?  Or, having the leds outside on a night like tonight? (It is 20 degrees F here and will be -2 the next night)  Is this related to superconductivity in any way?

Sorry for all of the rapid questions but, I have never heard that about leds and I am fascinated by this.  Thank you.

Bill

[jadaro2600]

Try dipping the LED, while lit, into Liquid Nitrogen. It will get MUCH brighter for the same current.

Cold temperatures usually cause electrical oddities.

I think what I need is a capacitive tank circuit - an inclusion in the circuit from the AC source.