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simplified firefly jar

Step 2Final thoughts.

Sorry about the lack of pictures my camera is on the blink. As soon as I get some pictures I will post them.

I used a old mason jar and some very small gage wire to hang the surface mount LED's from. the circuit Is on a perfboard and hot glued in the top the over all effect is awesome except for the power supply wire running into the top. It will be replaced soon with a 2 small 3 volt batteries so the whole unit will be self contained. in addition to the batters it will also be getting a light sensing circuit to turn it on at dusk and off at dawn. I'm even going to put in a small cell phone vibrator to give the appearance of movement.

Remeber this is my first Instructable please be kind. I baleave Ive given credit to every one else work but if Ive forgot anybody please feel free to politely point it out to me and I will correct it.
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5 comments
Aug 9, 2011. 10:37 PMBegradoo says:
I am confused.
I built this circuit to your specifications and to the original designs specs.
The LED (3v Amber) lights up to a dim glow and stays on at 12 volts and does nothing entirely at 3 to 11. I tried reversing the 2n3904s collector and emitter and the circuit doesn't function at all.
Any thoughts?
Jan 8, 2010. 2:14 AMEarths_hope says:
sorry, but you camera was dying in early 2007, and now its 2010! where are those upadated photos?

also, this is a coment bump

giving 4 stars
Oct 5, 2009. 3:05 AMampeyro says:
wow, it's realy simple(the circuit), isn't it dangerous for the transistor? I'm trying to repair led flashing lights(the ones used in construction), the plan s to put another thansistor where you put the led(my leds uses 12 v and 2 amps at all) thanks
Apr 9, 2008. 10:44 AMcosgrove says:
Interesting Instructable, though you may wish to run it through a Spell Checker, some of the spelling was not so great

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Author:Dannos