Joule Thief 05 - 40W Fluoro Tube on 2 x AA's
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Uploaded by dodoshlodo on Mar 6, 2009
Joule Thief runs a 40Watt Fluoro tube on 2 x AA batteries!
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Uploader Comments (dodoshlodo)
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All Comments (31)
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man poste a diagam
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Please could you upload the schematic?
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Did you try putting the JT into a Pyramid?
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i have a solution to save energy on the battery by adding a capacitor and an extra potentiometer so you can get your joule thief in ramp pulse mode. that chould reduce the consumption.
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I have a question that no one would answer me : how fast does the battery deplete ?
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that is NOT a 40 W tube !!!! it's an 18 watt one
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Dodosholodo, in the video the third coil it doesn't look like 500 turns. Seriously isn't 200 windings? Maybe looks like less windings cause you use such a big toroid. I you many layers to reach 200, and you didn't you any layer.
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I replicate your device, but my toroid does not sing. I have no 90 V neon at the transistor maybe that is the reason?
Thanks for answer.
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Almost enjoyed your video--looks very interesting--too bad those pussies that work for YT are so sensitive.
Enjoyed your others ones though!
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Very nice work! Great video too. Excellent job.
Bill
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hey where did you get your pot at???mine blew when i was using just a regular Jt with 90 turns and two AA's. Mine was a 5k from radioshack.
jerronimo3000 2 years ago
I get all my stuff from jaycar(dot)com(dot)au in Australia. I also use a 5K 2W pot. try to get a pot with highest wattage rating.
The pot blows when lots of current flows through it. if the pot was wound down to a low resistance it will allow lots of current to flow thru and blow it. Make sure the resistance is atleast 1k and u wont have a problem.
I like to use a balast resistor in line with the pot so the minimum resistance will be the value of the resistor, if pot is wound down
dodoshlodo 2 years ago
u can see in this vid I have a power resistor in line with the pot to protect it. Its also to protect the 2n3055 transistor at the base. Use a 2-5W power resistor at about 300-600ohms.
This means the miniumum resistance at the base will be this power resistor protecting the pot and transistor.
dodoshlodo 2 years ago