Big Joule Theif

[Lidmotor]

The Coil

Thank you everybody,


OK lidmotor,
Here is a closer look. I described the details above so I won't repeat it... just a closer look.
I wrapped the string 3 times around each side of the centertapped primary to keep the primary from being overlapped by the secondary. The string is about as thick as some 24awg wire.
This is the Tor-61 from allelectronics. I am going to check out the mmi info now to see what they have.
jeanna

Thanks Jeanna
I should be able to make this ok. It doesn't look that hard.

Lidmotor

[jeanna]

voltage too high?

Hi everybody,
I had a time consuming dissapointment today.
I want to share it to save some of your time, or at least bring up the question.....


I finished my lamp and darn... this is so strange.

I went to a lot of trouble to get the battery-rheostat-switch in line with the joule thief under the fixture.
I did all that so I could use the switch.
I even fed the secondary wires through the little holes around the bulb screw place.
I managed to get the thing so it went out when the switch was thrown, but it continues to drain from the battery.
It might be a faulty switch, but I bet it is because it is doing a joule thief radiation shuffle, or some other kind of dance.

So, it looks sort of like the other globe lamp except it has a rheostat.
The light is the unmodified 19 led LoA light so it has fewer bulbs than the 24 in that one, and it is beautifully smooth in the light it gives off.
I mean there are no bright light spots coming through the glass bulb.
Those strawhats are very nice in that way.
But, it is not really any brighter, of course because it has 19 leds and the other has 24 leds.

I did this because I thought it would be easy or easier, or at least an option for someone who did not want to take the light apart. (nope)

I will probably remove the joule thief and use it for a growlight because it lights my 15w growlight really well.

jeanna

[Lidmotor]

Wrong toroid core??

@ Jeanna
I tried to make the small HV toroid yesterday and failed to get it to work. I think that the toroid core I was using was perhaps wrong so I ordered a couple of the Tor-61s and will try again. Sometimes things that look easy --arn't. About 20% to 30% of what I try doesn't work or works differently than what was planned. Once in awhile a new "thing" emerges and one of those "Oh Wow look at that" moments takes place. Those are unfortunatly rare moments.

Lidmotor

[jeanna]

Ah, yes.
Then you make a video so it is known everywhere anyone is watching.

I am curious about how you wound the toroid.
Did you do my more difficult new one?
I ask because I have never seen anything like this and I suspect that it has to do with both the toroid and how the turns go.

Well, I am off to get some aluminum pans etc.

This will be cool.

I picture it this way...
you walk into a house and touch the shiny part of the wall and all the lights in the house go on.
or...
Maybe it could be started with one of those IR body heat detectors so you don't even need to touch it! ... but I am ahead of myself. I need to get the pans first!

thank you for all the good ideas!

jeanna

[Lidmotor]

Toroid core

Ah, yes.
Then you make a video so it is known everywhere anyone is watching.

I am curious about how you wound the toroid.
Did you do my more difficult new one?
I ask because I have never seen anything like this and I suspect that it has to do with both the toroid and how the turns go.

Well, I am off to get some aluminum pans etc.

This will be cool.

I picture it this way...
you walk into a house and touch the shiny part of the wall and all the lights in the house go on.
or...
Maybe it could be started with one of those IR body heat detectors so you don't even need to touch it! ... but I am ahead of myself. I need to get the pans first!

thank you for all the good ideas!

jeanna

Hi Jeanna,
My toroid cores arrived from Allelectronics yesterday and I will have another go at you little HV coil. The core that I was trying to use was all wrong and I tried the hard and the easy way of winding the secondary on it. Neither way worked. The core may have been made of iron powder instead of ferrite.

Happy New Year

Lidmotor

[jeanna]

Hi everybody,

I made a lamp using a tor-23 which is about 5/8 inch.

TIP3055RadioShack
5T,8T,84T MK1Jeanna style
120r fixed
309v
40Kh

I managed to keep the volts DOWN to 309v at 40Khz and placed the jtc between the base of the bulb and the lamp switch.
When I did this with 700 v yesterday the switch continued to arc and never turned off.
So, it is bright but not as bright as with 700v, but now I need to hide the wires.
Here is my pic for today.

To a bright and shining New Year!


jeanna

[Watson]

Ferrite Toroid Cores

That toroid has a permeability of 10,000µ (which must mean it is MATERIAL W)
and
that 0.5" x 8" rod is of MATERIAL 43 -- Permeability 850

For everyone's reference:
FERRITE MATERIALS LIST - the details
FERRITE CORES

A few months ago I got some ferrite toroids from Goldmine Electronics, stock # G66683, at 5 for $1.00 (I checked and they're still available). At ten bucks, I have a big bagful, enough for the rest of my life, I'd guess. They're pretty good size: O.D is .985 inch, I.D. is .510 inch, and height is .355 inch, fairly thick for its size. The smooth cores look like uncoated ferrite.

They are very high permeability; a single wire through the core measures 3 microhenrys on my LC meter, and 6 turns measures 560 microhenrys.

I built a higher power JT using one of these cores and eight turns of 24 gauge solid insulated phone wire for both windings. I works very well and drives a 10mm 5-chip white LED at 80 mA. I wound 6 feet of the same wire on another core and it measured about 50 millihenrys but the meter is not accurate at this high of an inductance. The JT oscillated at 1100 Hz, the lowest I've ever measured in a JT that I've built. I can hear it in an earphone!

I started to wind a lot of turns of 32 gauge wire on one, but it's tedious and I didn't finish. I don't think I have anywhere near a hundred turns. I may try to wind some primary and feedback winding over it and try to drive a few neons or a CFL something like that.

I hope your holidays have been happy.

[slayer007]

Here is a video from Chilliqueen on youtube.

YouTube - Super Joule Thief - RLC resonant circuit.

It's another JT circuit very interesting design.
Looks like a must try.

[CosmicFarmer]

@watson

I started to wind a lot of turns of 32 gauge wire on one, but it's tedious and I didn't finish. I don't think I have anywhere near a hundred turns. I may try to wind some primary and feedback winding over it and try to drive a few neons or a CFL something like that.

Finish it. Allow 30% of the core to be bare and then wind bifilar 2 / 8. Then when you find the "Right Stuff" a comparison will be enlightening ;-)

[Lidmotor]

Chilliqueen

Here is a video from Chilliqueen on youtube.

YouTube - Super Joule Thief - RLC resonant circuit.

It's another JT circuit very interesting design.
Looks like a must try.

@Slayer----We think so much alike. A YouTube viewer contacted me and gave me a link to one of Chilliqueen's other videos and I ended spending an hour watching his videos. This particular one I favorited and is a must try simple circuit. I really like the way that he is experimenting with electronics and showing how this can be learned with a few components, a piece of cardboard, and tape. Thanks for posting it here. Maybe we can get him to join in the fun at this forum.

@Jeanna---SUCCESS!!! I got the little toroid wound and it works. I just wound 3T, 9T, 110T with the 110T wound in two layers. It is all "green" wire. It lights up the LightsofAmerica bulb (still unmodified) on a AA. I started messing with it and tried adding a second then a third transistor (2N2222) to the circuit to HOT ROD the thing. It is like putting a bigger carburator on a car engine. It eats more fuel (higher higher voltage and more amps) but the perfomance goes up. This is Dr. Stiffler's idea and after I saw what it did on a JT I stopped and tried it on my old SEC 15. I made a video of that but didn't post it here because it didn't fit in anywhere.
It is at my channel.
Happy New Year!!!

Lidmotor

[jeanna]

@Jeanna---SUCCESS!!!

yeay!!

I started messing with it and tried adding a second then a third transistor (2N2222) to the circuit to HOT ROD the thing. It is like putting a bigger carburator on a car engine. It eats more fuel (higher higher voltage and more amps) but the perfomance goes up.

I saw you did that on something else. Is this just what more silicon will do?
I have seen that the physically larger transistors both take more amps and produce higher volts, in the same way you are describing this.
It could be an interesting way to fine tune the amount of amps juice needed to run the dc part of the circuit.
(But, at this moment, I prefer using the rheostat to control the amps draw.)

Thank you,

I will check out the video.

Happy New Year

jeanna

[Watson]

@watson



Finish it. Allow 30% of the core to be bare and then wind bifilar 2 / 8. Then when you find the "Right Stuff" a comparison will be enlightening ;-)

I noticed that I put one too many 6's in the part number, it's G6683. The advert says they're from Nippon Ferrite but I can't find anything about this company on the web.

But I did find a list of Ferrite manufacturers and distrib's, many having catalogs, and at the very bottom, a link to DL5SWB webpage with a program for toroid and inductor calculations and design.
WORLD WIDE FERRITE MANUFACTURERS

I have so many JTs driving LEDs that I don't really have any real reason to drive a CFL.

[sirmikey1]

Hi folks,
I was watching Lidmotor and Jeanna's videos earlier, LIdmotor's "Lightning Maker" and Jeanna's Multiple Secondaries,; and something dawned on me. Why not take 3 to 6 joule thiefs and put them on a torroid evenly spaced, pulsed to rotate, and then put the collector secondary around the whole thing, all 6 170volt tiny 4KV Trigger Coil thieves (armature) acombined on one collector. Well, it beats Stan Meyers Iron Gas bull****, and it's likely what Steven Mark was doing. Hey, take it one step further than that, and use the 6 thieves to pulse 6 lightning makers mounted on a torroid and wrapped with a collector. Hail Tesla! Maybe not major amperage output, but that's not needed if you use the kv pulsing (rotoverter) big caps, instead of heavy amps. Well, just wanted to put this out there.
Mike East...

[sirmikey1]

Watson,

I found some ferrite ring sites yesterday. Mouser has 61mm and 23mm in stock, brandname is Wurth and the link for the specs is below for these part numbers.... Keep in mind that mouser can get anything for you.

The trick is to look through the mfg catalogs, and then search the stores.
Bingo:

################
Wurth Ferrite Toroid Cores
"Type W" is High-Medium Permeability around 800
################

22.5mm Toroid (type W is high-medium perm)
Size/Spec 22.5 13.8 6.4 45 133 187 398 =13.3 3 W 800
Mouser #: 710-74270119
Mfr. #: 74270119
Desc.: EMI/RFI Suppressors & Ferrites Z=133ohms @ 100Mhz
RoHS: RoHS Compliant
Ships Now
$0.74


61mm toroid Type W
Size/Spec 61.0 35.5 12.7 64 133 323 680 =33.4 4 W 620
Mouser #: 710-74270097
Mfr. #: 74270097
Desc.: EMI/RFI Suppressors & Ferrites Z=133ohms @ 100Mhz
RoHS: RoHS Compliant
Ships Now
$5.86


Wurth Link
Wurth Ferrites: (Mouser does stock some models)
WE Produktkatalog

Fair-Rite
Fair-Rite Catalog | Toroids

TDK
Ferrites | Products - TDK



Laird Technologies
Ferrite Products | Laird Technologies

API
Delevan

[sirmikey1]

Watson,

I found some ferrite ring sites yesterday. Mouser has 61mm and 23mm in stock, brandname is Wurth and the link for the specs is below for these part numbers.... Keep in mind that mouser can get anything for you.

The trick is to look through the mfg catalogs, and then search the stores.
Bingo:

################
Wurth Ferrite Toroid Cores
"Type W" is High-Medium Permeability around 800
################

22.5mm Toroid (type W is high-medium perm)
Size/Spec 22.5 13.8 6.4 45 133 187 398 =13.3 3 W 800
Mouser #: 710-74270119
Mfr. #: 74270119
Desc.: EMI/RFI Suppressors & Ferrites Z=133ohms @ 100Mhz
RoHS: RoHS Compliant
Ships Now
$0.74


61mm toroid Type W
Size/Spec 61.0 35.5 12.7 64 133 323 680 =33.4 4 W 620
Mouser #: 710-74270097
Mfr. #: 74270097
Desc.: EMI/RFI Suppressors & Ferrites Z=133ohms @ 100Mhz
RoHS: RoHS Compliant
Ships Now
$5.86


Wurth Link
Wurth Ferrites: (Mouser does stock some models)
WE Produktkatalog

Fair-Rite
Fair-Rite Catalog | Toroids

TDK
Ferrites | Products - TDK



Laird Technologies
Ferrite Products | Laird Technologies

API
Delevan