Joule Thief

[gadgetmall]

@ IST:

Thanks!  I know I can make it brighter with the changes I mentioned.  Shorter tube, smaller diameter, brighter leds....etc.  Just a little bit of bleach in the water will keep it from going bad.  But yes, we could add crystals or crushed glass into the tube to really defract the light for some neat effects.  Yes, it works with a straight tube and it about as bright as a light stick.  (the chemical glow stick)  I just wanted to come up with something that that might replace cfls....at least at my house.  Thanks again.

Gadgetmall:

PM me when you get a chance.  I think I would like to purchase one of your boards. (modified Fuji)  Thanks.

Bill

are you in the US  ?

[innovation_station]

i have a bunch of thease plastic cores laying round they are from paper spools for till tape .....  and they work awsome !!!

im building a lantern style solar unit ... 

i used 2 led 1 in each end ..   10mm 

ist

[Pardon]

I think i have the answers i was looking for. thanks. i was using a 2n2222 trans. and that was my problem. The voltages between the Battery, the Base, the Emitter were always changing as the voltage went down. the voltages were never the same at each location. now that i have a good 2n3904 working, the voltages are the same at each location accept the battery has a higher voltage. but the other locations are all the same voltage.

I had to add turns to the coil with the 2n2222 to get it to light. but with the 3904 i can remove them and now i am back to 5 turns on the coil. also i am now running it at .60 volts. and with the 2222 it quit running at .90 volts

Now i can go back to full voltage and tune it.

Thanks to all for all the great work going on

[gadgetmall]

Hi All

Great to see you all making progress..it's all good

I photographed one of my Fuji camera boards this morning trying to include the PCB traces and just got to editing it tonight (see photo).

This is the Fuji mod by gadget that was posted earlier in this thread but I couldn't make out parts of it so I redid it with a different title, let me know of any changes to include and I will modify it and re post it.

I'm off to get some parts tomorrow

EDIT:  Was the "103 Cap" on the original supposed to be 103 PF or 103 MF (pico or micro)?

Regards,
Paul

HEY Paul . this is the best photo i have seen so far .Great Work ! You do not need HV mod to light CFL  Nor 103 cap / how ever if you want to run some leds,neons on one wire with the clf you can add the 103 cap and take the tiny post on top of the small transformer and hook one lead up only and just have the other lead float or attach to the big transformer metal case  . it will light up .

[Pirate88179]

Gadgetmall:

Yes, I am in Kentucky, USA.  Not too far from where Nathan Stubblefield's farm used to be. (earth batteries.)

Bill