Joule Thief

[stprue]

here is some info on winding tesla primaries, pancake style. i know this isn't bifilar like you want to wind but it might give you some ideas.
http://www.tb3.com/tesla/hugecoil/primary/primary.html
http://www.capturedlightning.org/hot-streamer/exxos/room/mycoil.html

This is good stuff...thanks for the infos

[stprue]

Ah yes, stprue

Your boneyard must look a lot like mine by now.

I am finding a use for them as plain inductors on the ac side of things. Maybe you will find a good use for yours too!

jeanna

hehe It's getting pretty full!  Just when you think you have a good idea...bam..another blah blah coil.  For me, if I don't try it I will just keep thinking aobut it, so I just need to build most every idea....oh well it's the best way to learn anyways!

[stprue]

about my last picture see above ...

what if i took speeker wire bifillar thin gage ..  and did 3 turns around each and compleated the loop at the 6th coil then jt ed the pulse coil with a 3055 and never taped the jt flyback so it is forced out the 6 inductors as step up transformers then grouped all outs togather as one after rectifering

ist

just looking for comments



yikes i may wind round and round and round then stop .....  hummmmmmm

ok im gonna use magnet wire .... bifillar

gonna use fone wire .. as primary

That's some very interesting stuff your working on...nice job bro

[resonanceman]

about my last picture see above ...

what if i took speeker wire bifillar thin gage ..  and did 3 turns around each and compleated the loop at the 6th coil then jt ed the pulse coil with a 3055 and never taped the jt flyback so it is forced out the 6 inductors as step up transformers then grouped all outs togather as one after rectifering

ist

just looking for comments



yikes i may wind round and round and round then stop .....  hummmmmmm

ok im gonna use magnet wire .... bifillar

gonna use fone wire .. as primary

IST


I suggest  that you rectify them in 2  groups .
I would  use at least  2 of  them  for  feedback
I have found that  adding feecback  aften  boosts  the output  voltage more than   adding  flyback

I am pretty sure that you know this .......but maybe  others  don't
You  need to  have  a load to drive before you can  get  much  flyback  from  a circuit  like this . The  flyback is   created  by  current creating magnetic flux  in the   coils .......  if there is not much  current there will not be much flyback
The  load  can be in series with the  flyback coils



gary

Edit

The more  I look  at the  pictures  the more  it looks to me like you have  made one large  unit  with 6 separate  parts .       All the   primarys are in series .
It looks to me that  it will act as one unit rather than as a string  of  units

I  would  say it will act  like one large  JT ...... if    your  3055  has enough  power to drive  it .

You really  don;t have alot of  wire in the primarys  for  collecting  flyback
I take  the output of the  original  JT secondary and  feed it into the secondary of another  JT coil .
( more wire =more flux )   
After feeding a few  secondarys  I usually have to switch to primarys  so that I don't  build  up  to much inductance in the  string

[innovation_station]

BINGO!!!   

200V RINGGINGGGGG PULSES ... 

x6 ill scope it later on today ... 

im impressed...


ist

useing 3904 and the same aaa battery

later has come early 

here are some pictures ..



scope is 50 v /div..