Joule Thief

[xee2]

@ ist

@ ist

400 volts should be enough to light a fluorescent tube. Hmmm... maybe not, If you rectify the sine wave it will no longer be 400 volts. The tubes may need 400 volts between the ends to light. The sine wave will only give 200 volts between ends. Should be interesting to see what happens. You may need to use gadgetmall's voltage doubler (I call it a peak to peak rectifier).

It looks like you need the voltage doubler.

[xee2]

@ jeanna,

Test started at 11 PM. The battery has a 2000 mAh rating and the circuit battery drain is starting at 230 mA, so the battery should go dead in about 9 hours (about 8 AM tommorrow morning). I hope I wake up in time.

[electricme]

@Xee and Jeanna,
Interresting test you have here.

@ jeanna,

Test started at 11 PM. The battery has a 2000 mAh rating and the circuit battery drain is starting at 230 mA, so the battery should go dead in about 9 hours (about 8 AM tommorrow morning). I hope I wake up in time.

jim

[Pirate88179]

Jim:

Crikey, what are you doing up at this time of night?  Oh yes, I forgot the time difference.

Seriously though, I am happy to see that you are ok and all is well.  Stay warm down there.  I should send you some heat from here...we have plenty it seems.

Bill

[innovation_station]

ok back at it .... im almost there ...

im gonna wind another ... 

same core material as all others .. 1" ring now im going to 30 ga wire .. and i will do

2 10 640

with the same components the 1k pot and the 2222 transistor and same aaa

see how it goes ...

ist!