Big Joule Theif

[pentiger]

Hello All.
A quick Update I have Hooked up a 12 volt car battery to to a JT circuit I had been running with a 1.5 volt AA Battery I had one 10 mm Led and a red Led to test with.Here are some photo's Tec

Hey, great setup, I wonder how long will it last with such battery. More testing needed

[Tectalabyss]

12 volt JT working

Hello All.
A quick Update I have Hooked up a 12 volt car battery to to a JT circuit I had been running with a 1.5 volt AA Battery I had one 10 mm Led and a red Led to test with.Here are some photo's Tec

[Tectalabyss]

@Tec and All:
I've burnt my share of leds already, and the good (bright) leds are hard to come by.
What I was refering to was a 12 Jt thief, connected to the newer 12 volt Leds, not the 3 volt leds..
You can connect the 12v Leds direct to a battery, but using a Jt in the circuit would extend the battery usefulness, big time, and alow for more lights, and a longer run cycles. Similar to Jeanna's 3 1/4 inch JT with a multi seconday Led light circuit, and over 1000 volts. Much easier to do when using 12 volts.
I'll find out more about the 10 watt warm whites Leds, and post the link. You can hook them up direct to the 12 volt battery source, they are made for it and will give the best result connected directly.
There are many guys that are working with the bigger 12 volt Jt circuits. That is where I'm headed, as you can only do so much with the 3 volt leds. I'm into getting some bigger more usefull light going, and not too concerned about using more current to get there. Solar panel to keep the battery up, and the running frequencies steady on the Jt, is the way to go, for me anyway. The Jt would be optional at that point. In anycase a self running Jt would be something else again, if we can make it work.
I got my dimmer pot working on the TIP3055, it really did need it, now I can run two AAs on it, while charging two AAs in parallel using my 1 inch toroid.
Anybody have any luck finding the 3 inch ferrite toroids, or tried a Crt Tv ferrite core yet.
NZ

Hello NickZ and All. Yes I see where you are going And yes I believe the 12 volts could be made to work with the JT and if a type of feedback circuit could be made it would make the run times seem almost endless.When I get the fund's I plan on buying some of the newer higher wattage Led's to test with the JT/12 volt setup.I have looked every where I can think of for the big coils no luck yet! I will Keep Looking After my illness a few months ago I am having to relearn a lot of the things But in a way that's not to bad,At least the electronics's part anyway Tec

[NickZ]

@Tec and All:
I've burnt my share of leds already, and the good (bright) leds are hard to come by.
What I was refering to was a 12 Jt thief, connected to the newer 12 volt Leds, not the 3 volt leds..
You can connect the 12v Leds direct to a battery, but using a Jt in the circuit would extend the battery usefulness, big time, and alow for more lights, and a longer run cycles. Similar to Jeanna's 3 1/4 inch JT with a multi seconday Led light circuit, and over 1000 volts. Much easier to do when using 12 volts.
I'll find out more about the 10 watt warm whites Leds, and post the link. You can hook them up direct to the 12 volt battery source, they are made for it and will give the best result connected directly.
There are many guys that are working with the bigger 12 volt Jt circuits. That is where I'm headed, as you can only do so much with the 3 volt leds. I'm into getting some bigger more usefull light going, and not too concerned about using more current to get there. Solar panel to keep the battery up, and the running frequencies steady on the Jt, is the way to go, for me anyway. The Jt would be optional at that point. In anycase a self running Jt would be something else again, if we can make it work.
I got my dimmer pot working on the TIP3055, it really did need it, now I can run two AAs on it, while charging two AAs in parallel using my 1 inch toroid.
Anybody have any luck finding the 3 inch ferrite toroids, or tried a Crt Tv ferrite core yet.
NZ

[Tectalabyss]

Led's in series

Hello All.
I am doing a test with the 12 volt battery and led's in series with a 1/4 watt resistor I have 20 led's running am getting no heat from the resistor and a very usable light I am going to test this for the rest of the week and if it works ok I will add photo's and diagram's of the setup with a parts list. Thanks Tec

[Tectalabyss]

@Tec and All:
I've been told that connecting the Leds direct to the battery (without a Jt) will make them light brighter and stronger, than to connect them through the Jtc to the battery. Can You confirm this for us?
I bought some of the Radio Shack 10mm Leds, but I'm very dissapointed with them, as they are only 10 degree, and don't spread the light evenly, and are very dim as they are only 20 mA, 3.5 volt.
They are worthless, I get more light out of the regular blue leds that I get for free inside some cigarette lighters.
I will have to order some of the Warm White Leds (straw hat 140 degree 0.5 watt). They are made from .5 watt, up to 10 watt (700) lumin. Should work fine with a 12v battery and solar panel. If somebody has bought them already, please comment about their Quality of light. I really can't stand the light from the regular white Leds, or the CFLs for that matter.
I wish that I could afford the whole set up with the big 12v battery, solar panel, charge controler, Led banks, and of course a big 12v Jt. It does get a bit expensive to do it right, but I feel that a 12 volt Jt, although not essencial in the set up, could make a big difference compared to what a normal 12 volt battery system can yield,
I've made a new Jtc yesterday using the TIP3055, and it runs so strong that I can't even use it with two AAs, so, I've had to run it with only one. Now I'm ready to install a dimmer pot, and the secondary.
Still no voltages can be read by my analog meter anywhere on the circuit (with Leds instald), but the above mentioned Jt can run on a single very, very dead battery that will not even budge my analog meter, on its own, even on the AC setting. It does appear to consume more power than the 2n2222 does, but using a big battery like the one you've shown it should not matter much.
Check the Leds at Ebay:
20 PC 0.5 Watt StrawHat 8mm 140° WARM White LED 90Kmcd - eBay (item 250448852092 end time Nov-12-10 15:47:29 PST)
Nick

Hello NickZ And all.
Yes it is bright. but DO NOT HOOK ANY LED UP TO A 12 VOLT BATTERY without the right resistor or you will burn the led or leds out !!!. What I showed was not a JT circuit Just a battery/LED's in parallel/ and a 75 ohm sandstone resistor.We have a lot of power outages here in the mountain's where I live so I need something That's long lived no danger of fire very usable light and easy to recharge Tec

[pentiger]

@Tec and All:
I've been told that connecting the Leds direct to the battery (without a Jt) will make them light brighter and stronger, than to connect them through the Jtc to the battery. Can You confirm this for us?
I bought some of the Radio Shack 10mm Leds, but I'm very dissapointed with them, as they are only 10 degree, and don't spread the light evenly, and are very dim as they are only 20 mA, 3.5 volt.
They are worthless, I get more light out of the regular blue leds that I get for free inside some cigarette lighters.
I will have to order some of the Warm White Leds (straw hat 140 degree 0.5 watt). They are made from .5 watt, up to 10 watt (700) lumin. Should work fine with a 12v battery and solar panel. If somebody has bought them already, please comment about their Quality of light. I really can't stand the light from the regular white Leds, or the CFLs for that matter.
I wish that I could afford the whole set up with the big 12v battery, solar panel, charge controler, Led banks, and of course a big 12v Jt. It does get a bit expensive to do it right, but I feel that a 12 volt Jt, although not essencial in the set up, could make a big difference compared to what a normal 12 volt battery system can yield,
I've made a new Jtc yesterday using the TIP3055, and it runs so strong that I can't even use it with two AAs, so, I've had to run it with only one. Now I'm ready to install a dimmer pot, and the secondary.
Still no voltages can be read by my analog meter anywhere on the circuit (with Leds instald), but the above mentioned Jt can run on a single very, very dead battery that will not even budge my analog meter, on its own, even on the AC setting. It does appear to consume more power than the 2n2222 does, but using a big battery like the one you've shown it should not matter much.
Check the Leds at Ebay:
20 PC 0.5 Watt StrawHat 8mm 140° WARM White LED 90Kmcd - eBay (item 250448852092 end time Nov-12-10 15:47:29 PST)
Nick

Hi Nick,

I used the TIP3055in the 36 LED's setup with 2 AA batteries. It's bright, but I am still looking for brighter light. What size is your toroid and do you have any experience with the 10W LED's you mentioned (700 lumen) with JT circuit. They would be great for my needs.

pentiger

[NickZ]

@Tec and All:
I've been told that connecting the Leds direct to the battery (without a Jt) will make them light brighter and stronger, than to connect them through the Jtc to the battery. Can You confirm this for us?
I bought some of the Radio Shack 10mm Leds, but I'm very dissapointed with them, as they are only 10 degree, and don't spread the light evenly, and are very dim as they are only 20 mA, 3.5 volt.
They are worthless, I get more light out of the regular blue leds that I get for free inside some cigarette lighters.
I will have to order some of the Warm White Leds (straw hat 140 degree 0.5 watt). They are made from .5 watt, up to 10 watt (700) lumin. Should work fine with a 12v battery and solar panel. If somebody has bought them already, please comment about their Quality of light. I really can't stand the light from the regular white Leds, or the CFLs for that matter.
I wish that I could afford the whole set up with the big 12v battery, solar panel, charge controler, Led banks, and of course a big 12v Jt. It does get a bit expensive to do it right, but I feel that a 12 volt Jt, although not essencial in the set up, could make a big difference compared to what a normal 12 volt battery system can yield,
I've made a new Jtc yesterday using the TIP3055, and it runs so strong that I can't even use it with two AAs, so, I've had to run it with only one. Now I'm ready to install a dimmer pot, and the secondary.
Still no voltages can be read by my analog meter anywhere on the circuit (with Leds instald), but the above mentioned Jt can run on a single very, very dead battery that will not even budge my analog meter, on its own, even on the AC setting. It does appear to consume more power than the 2n2222 does, but using a big battery like the one you've shown it should not matter much.
Check the Leds at Ebay:
20 PC 0.5 Watt StrawHat 8mm 140° WARM White LED 90Kmcd - eBay (item 250448852092 end time Nov-12-10 15:47:29 PST)
Nick

[Tectalabyss]

I don't have any experience with these batteries, but I read somewhere that you cannot use them indoors. Also If I had a battery like that I would like to get as big and bright light as possible that lasts for days.

Maybe a strong joulethief could work. pentiger

Hello PenTiger and all.
I have ran test's charging automotive battery's has long as it's a slow low amp charge it will not make enough gas to be dangerous I have covered the top with a stretchable plastic and a low pressure Gage .and to be safe you could also make a simple cover to vent to the outside when it's warm keep them outside anyway. There are also the sealed lead acid type they are cheap small and sold online . Tec

[pentiger]

What did you think of my simple batt / led setup ??

I don't have any experience with these batteries, but I read somewhere that you cannot use them indoors. Also If I had a battery like that I would like to get as big and bright light as possible that lasts for days.

Maybe a strong joulethief could work. pentiger

[Tectalabyss]

it was 3/4 inch from PC power supply. I have a spare 1inch from the same supply that I will try next.

I am supposed to get the big toroids for Jeanna's light. I will let you know when I have them.

pentiger

Great when you get them you can do what Jeanne,lidmotor, and the others have done you will also need some magnet wire 28 or 30 agw what ever they used in the coil's they made I did have a list of supplier's but I cant find it . What did you think of my simple batt / led setup ?? . If you have any questions about the JT just ask if I cant answer there are people here that know a lot more than me that will be glad to help. Tec

[pentiger]

good job PenTiger What size coil are you using ? I will Try and Go over some of my older order forms to see if any of the company's I use to buy from sold bigger toroid.s . Tec

it was 3/4 inch from PC power supply. I have a spare 1inch from the same supply that I will try next.

I am supposed to get the big toroids for Jeanna's light. I will let you know when I have them.

pentiger

[Tectalabyss]

I finished a small project. I reused broken LED flood light from harborfreight.

36 LEDs from two AA's. I wish it was one AA, but it's a little dim with one.

2 batteries do the trick.






it's just a basic JT, no secondary.

pentiger

good job PenTiger What size coil are you using ? I will Try and Go over some of my older order forms to see if any of the company's I use to buy from sold bigger toroid.s . Tec

[pentiger]

I finished a small project. I reused broken LED flood light from harborfreight.

36 LEDs from two AA's. I wish it was one AA, but it's a little dim with one.

2 batteries do the trick.






it's just a basic JT, no secondary.

pentiger

[Tectalabyss]

@Tec:
Looks like a good start with that 12 volt battery. If you connect it to a 18 volt solar panel and charge controler, it will provide free lights for quiet a while.
How many leds would you think that it could light full brightness all night? Enought to light a small house, trailer, or boat, with low light levels?
Has anybody connected the new 10 watt Led bulbs that output 700 lumens, onto a strong Jt circuit yet???
NZ

Hello NickZ and All.
Thats where this is hopefully leading up. To the wiring does not even have to be a heavy gauge the only heat is at the resistor. I've ran 20 led's so bright you cant stand to look at them for over 24 hour's with a very small drain on the battery,and yes a solar panel wind wheel or hydro power would keep it going for how ever long the part's lasted.And has for the higher watt led I am sure there's a way.There should also be a way to put 12 volt's on a JT circuit who know's how long it may run ??.Thank You for the reply Tec.