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Author Topic: Joule Lamp  (Read 343920 times)

b_rads

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Re: Joule Lamp
« Reply #60 on: May 18, 2012, 08:39:55 PM »
 
Now I can put an unknown light source in there, such as a bulb during Lynx-Lamp testing, and actually measure the Lumens!  I will be able to tell HOW MUCH the light is actually getting brighter or dimmer as I change things like the tap on the primary.
(PS == Not hard to build a light-box! and easy to calibrate.  I think Nerzh said he is building one.)

OK - you convinced me, ordered my lux meter today and will put together a box like yours to test in.  Graphing the light output along side the wonderful graph that Lynxsteam did will be very interesting.  Thanks for the graph Lynx, I think it is starting to sink in what is happening in this build.  This is all very new stuff for me and takes a while to absorb.
 
Did I say that this build makes no audible noise that I can hear,  haven't asked the dog yet though.   :D
 
Brad S

Lynxsteam

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Re: Joule Lamp
« Reply #61 on: May 18, 2012, 09:07:51 PM »
Here's my report on primary wire. 

I tried the following with 4 LED bulbs:
Twisted 18 awg magnet wire then 30 turns on secondary.  High amp draw 2.2 amps, very poor light and hard to start
1/4" copper tubing spaced evenly, 30 turns, "nothing nada zip"  no startup, no amp draw - dead
4 - 14 awg stranded insulated wires in parallel for 30 turns completely filled length - high amp draw 2.6-  amps - moderate light

Next up:
10 gauge stranded insulated (diameter as big as a soda straw)
12 gauge stranded insulated
14 gauge stranded insulated
18 gauge stranded speaker wire with very heavy vinyl insulation

I will try primary turns at varying distances to the secondary.

Its funny, my first tries were the best and I have gone downhill since.  I'll put results in a table to help sort out the different variables.

JouleSeeker

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Re: Joule Lamp
« Reply #62 on: May 19, 2012, 02:00:18 AM »

OK - you convinced me, ordered my lux meter today and will put together a box like yours to test in.  Graphing the light output along side the wonderful graph that Lynxsteam did will be very interesting...
 
Brad S

Good news, Brad!   I believe that those Observations which are Measured and Recorded will Accelerate Progress.  (OMRAP?  ;) )

I also found with some google searching that the world-record for light output from LEDs is right around 140 Lm/W.  (If anyone finds a more up-to-date world-record, pls let me know.) 

 So -- if we manage somehow to get ABOVE 140Lm/W, and it is verified, then that would suggest an anomalous source of energy coming in...  see?

hartiberlin

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Re: Joule Lamp
« Reply #63 on: May 19, 2012, 02:30:58 AM »
Great circuit,
but the problem is, that CFL lamps,
if they break during lighting
put out immense vapours of Mercury, which is very poisoneous !

See this German language movie,
where a little child  slept below a broken
CFL lamp and was poisoned by the mercury vapours and now
is very ill:

http://www.youtube.com/watch?v=bwp2dg88Yv0

So be very careful not to break the CFL or Fluorescent tubes,
otherwise your flats will be polluted with Mercury vapours !

So we should better go to LEDs.

But we need to buy these warm light LEDs, around 2700 Kelvin.

The bright white LEDs, with around 5000 to 7000 Kelvin are dangerous
for your eyes ! They have too high spectzrum bands in the blue area
which is not healthy for your eyes !

One of the best new LED lamps is the new
LED light bulb from Philips,
which also recently won the L-Prize.

It is the Philips EnduraLED.

It is the direct replacement for a 60 Watts incandescent bulb and
you can´t see a difference in color rendering.

Check it out here:

http://amzn.to/wO91VS


Regards, Stefan.

Lynxsteam

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Re: Joule Lamp
« Reply #64 on: May 19, 2012, 03:19:30 PM »
B-Rads

I duplicated your turns/power results exactly with that same bulb.  I tried a couple other things.  I was able to start and run the bulb with 13 turns when they are stretched out the length of the secondary for .325 amps.  No big deal, same power draw, but interesting.

I also played with Tesla's Parallel winding.  Take two wires of equal length and put 14 turns on the secondary.  Take one start and connect to the other's end to form the Tesla parallel winding.  I was able to drop power to .085 amps.  Its not bright at all but its interesting.  Now remove the bulb and look at power draw.  That energy is going somewhere.  where?  Now try a large tube florescent and touch one end to the secondary wire, leaving the base wire unconnected.  This is a Tesla coil.  With a 40 watt tube, power draw was .220 amps or 2.4 watts.

I find this interesting because normally with a Tesla coil the primary is a small loosely coupled coil at the bottom of a tower.  You can get all the classic Tesla Coil phenomenon with this LJL.

NerzhDishual

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Re: Joule Lamp
« Reply #65 on: May 19, 2012, 03:52:44 PM »

Hi People,

I do agree with HartiBerlin.

Appart from a natural laziness, it is the extreme 'dangerousity' of these CFL lamps
(containing mercury) that makes me hesitating to build this devices.

What about mere "old fashioned" fluorescent lamps (neon lights)?
Would it work with this Circuit?

Very Best,
Jean

Lynxsteam

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Re: Joule Lamp
« Reply #66 on: May 19, 2012, 07:10:38 PM »
Ok, done with the experiments.  I am not going to make a table.

I don't know why I ruled this out before, but winding the heavily insulated primary turns right on the secondary is the way to go and even easier.  Get the biggest insulated gauge stranded wire you can find and wind 10:1 ratio on the secondary evenly spaced.  My secondary is 20 awg and 368 turns.  I put 36 turns of 12 awg on in the opposite winding direction and I get 1.8 amps for 4 LED bulbs.  That's 5.4 watts each.  With 6 bulbs I get 24 watts total or about 4 watts each into the 7.5 watt bulbs.

I tried tesla parallel - higher amp draw no more brightness
I tried several strands in parallel - higher amp draw no more brightness
I tried out farther from the secondary and total power is reduced.
I tried putting the turns at the middle and at the ends with poor results, falls out of oscillation.

Simplest is best.  So simple, this circuit could be wound on a stick and work nicely.  For fluorescents the primary turns are  halved so put a tap at 18 turns for this big 368 turn coil.  For the smaller original LJL use 14 turns for the 680 30 awg wire, or double for LEDs.

JouleSeeker

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Re: Joule Lamp
« Reply #67 on: May 20, 2012, 06:35:14 PM »
Thanks, Lynxsteam -- and for this informative new vid on how SJR 2.0's are put together:

http://www.youtube.com/watch?v=ROwdzpbISB4&feature=uploademail

Lynxsteam

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Re: Joule Lamp
« Reply #68 on: May 24, 2012, 04:51:27 PM »
Here's a Video titled "Joule Ringers that Don't Ring" showing the E-core and the Aircore side by side.  It demonstrates the flexibility of both circuits, the power draw, and bandwidth capability of both.  Each has its positive aspects.  For pure efficiency the E-Core is amazing with little downside.  The Aircore adjusts to load better, acts more like a household AC supply circuit and starts a little nicer.  Now for Lumens/watt testing which JouleSeeker is undertaking and will report back when done.
 
My guess from watching both is that the E-Core is twice as efficient at providing lumens per watt.  But both devices are very efficient and would easily utilize a medium sized solar panel to provide lighting for several of the rooms in your house - for Free!

I also show the big "Kong" torroid making lots of noise and putting out too much power in a very narrow bandwidth.  This Torroid would probably benefit from the original Joule Ringer circuit.  I will not pursue that however.  If anyone wants it let me know.

http://www.youtube.com/watch?v=-KzugLhMB9A


Lynxsteam

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Re: Joule Lamp
« Reply #69 on: May 26, 2012, 02:58:44 AM »
See that picture above?  Now imagine the primary is not on that PVC tube and instead wound directly over the 20 awg magnet wire.  I wound the primary completely over the secondary.  The turns are 368 secondary, 107 primary of 14 awg electrical wire.
I sanded off a stripe of insulation on the primary so I could tap at each turn.

With one 7.5 watt LED and 12 volts I found a spot at 68 turns where amps dropped down to 280 ma.  That spot is a little over half way across he secondary.  Either side of that turn ma go up in a sort of linear way.  Turns 66-70 ma are right around 300 for one bulb.

1 bulb, 68 turns, 280 ma, 3.36 watt input, 99.4 Khz - brightness maybe 50% - useable

6 bulbs, 68 turns,  848 ma, 10.2 watt input, 47.7 Khz - brightness maybe 30-40% - not very useable

14 CFL unmodded, brightness 70% , 107 turns 1.02 A 29.2 Khz  I suspect that amp draw could be less with more turns but I ran out of turns. 

The other interesting thing is the circuit with no battery hooked up puts out .225 volts, about a 1/4 of a volt with base disconnected.  Base connected about .100 V, 1/10 of a volt

NerzhDishual

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Re: Joule Lamp
« Reply #70 on: May 31, 2012, 08:15:20 PM »
Salve a tutti,

I have replicated this Joule Lamp. One 2N3055. No diode.

In spite of a nicely (but unpurposely) botched (hand made) secondary coil
(about 640 turns; Diameter 2 cm ; Length 23 cm ; AWG #30), it seems to work! :P

It worked (lighted a small 6 watts fluorescent lamp) the first time I switched it on!
Then it stopped as soon as I moved in the room...

This circuit is amazing and very capricious.
It does not works each time you switch the power on.
Amp consumption: from 0.3 to 1 amps depending upon the primary "tuning"
(the secondary coil can  'slide' inside the primary).

I have also tested it with 2 fluorescent 6 W lamps.
It works even when the lamps are just plugged with one wire to the 'positive' HV side.

Pictures and  more tests to be done.

Thanks to Lynxsteam for this circuit and his precisions.

Very Best,
Jean

Lynxsteam

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Re: Joule Lamp
« Reply #71 on: June 01, 2012, 08:41:52 PM »
I thought it was helpful to compare different types of blocking oscillator DC converters to help people understand them better.  I'll just stick to what I am doing from now on and not reference anyone else's work.

I resurrected the smaller AirCore (the 12" long one).  I modified it quite a bit.  My goal is to make it the best it can be.  Power output is up substantially.  Brightness is very useable.  These same modifications apply to any size aircore I decide to make.

Below are results from a comparison done with the bulbs plugged into the wall through a watt meter, and plugged into the AirCore.  I recorded data for 4 bulbs and for 6 bulbs.  These were 7.5 watt Utilitech 450 lumen LED warm bulbs.
Voltage and amps were recorded for the aircore using a DMM.
Light output was recorded through a 6 volt photovoltaic panel mounted above the bulbs in a light box.
Frequency results
4 bulbs 19 khz
6 bulbs 16.9 khz


Lynxsteam

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Re: Joule Lamp
« Reply #72 on: June 01, 2012, 10:54:49 PM »
Here is a video I shot today.  I was supposed to go play golf with my son, but its 55 F and raining. 
I am very encouraged that the aircore is so easy to make and beats the heck out of running lights with the house grid power.
A solar panel indoors facing a window is enough to make this work.  These six bulbs require 18 watts.  My solar panel in full sun puts out 60 watts.
My light box isn't perfect so I will probably have Joule Seeker do a confirmation with his setup, if he is willing.
I don't see how there is a limit to how big and powerful this can be made, except for practicality and the 6 amp limit of the transistor.  In this video the amp draw is about 1.49 amps on 12.1 volts.

http://www.youtube.com/watch?v=ep6-hJ3kLOM

Lynxsteam

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Re: Joule Lamp
« Reply #73 on: June 03, 2012, 12:37:14 AM »
I received a comment on a video saying the power is too high into the LJL.  I can control the power by adjusting frequency.  The aim is to provide enough power for many many light bulbs.  4-5 watts per bulb provides very nice brightness for the 7.5 watt bulbs.  Its interesting that the first bulb draws 1 amp, and subsequent bulbs require 200 ma each.  I have added enough bulbs to drop the frequency down to 10khz and put out 40 watts.  I haven't found the limit yet.

JouleSeeker

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Re: Joule Lamp
« Reply #74 on: June 03, 2012, 02:12:58 AM »
Here is a video I shot today.  I was supposed to go play golf with my son, but its 55 F and raining. 
I am very encouraged that the aircore is so easy to make and beats the heck out of running lights with the house grid power.
A solar panel indoors facing a window is enough to make this work.  These six bulbs require 18 watts.  My solar panel in full sun puts out 60 watts.
My light box isn't perfect so I will probably have Joule Seeker do a confirmation with his setup, if he is willing.
I don't see how there is a limit to how big and powerful this can be made, except for practicality and the 6 amp limit of the transistor.  In this video the amp draw is about 1.49 amps on 12.1 volts.

http://www.youtube.com/watch?v=ep6-hJ3kLOM

Excellent progress, lynx.  Yes, of course, I would be very happy to do a confirmation.