Joule Ringer!

[lasersaber]

@kooler

Thanks for looking that up.  That is the same transistor.  It seems to work really well.  A tip31 also works about the same but I am out right now and waiting for another hundred to arrive.  I have gone through at least fifty disposable cameras and all the transistors within many miles around playing with this circuit.

@conradelektro

The circuit diagram is the one on my video titled "Joule Ringer update + schematic." with the changes mentioned in the latest video.  Basically replace the diodes with a 4 mega ohm pot, use a tip31 or h1061 transistor and replace the transformer with the E Core  (ICH) 0P-45224-KIT.

what is the second coil doing,

The second coil I use when I want to optimally tune the circuit.  It has many bifilar layers with different wire gauges.  I just tap into it in different places to adjust the frequency on the device.  The neon's, spark gap and second coil are all there for making fine adjustments to the performance of the device and testing new ideas.

how many turns and which wire on the transformer and the coils? Is that so difficult to tell?

It actually is kind of is difficult to tell.  I have made two of these transformers.  The first one used 40 gauge wire.  I wound it until the bobbin was almost full.  I only left enough room for a layer of tape and two final layers of 18-gauge hookup wire.  This transformer performed really well until the fine 40 gauge wire started arcing and burning up on the inside.  The second one I made is the one you see on the video.  The only difference on it is that I used 30 gauge wire instead of 40 and one layer of hookup wire.  There are a number of fine points about the way it is wound that cannot be easily illustrated on paper.  I plan on showing the process in video or 3D graphics.

Well, either we talk about your circuit in a serious way or we play sucker games. I do not like the video, this is not a practical way to talk to technically oriented readers. The intention is not to transmit information, I wounder what intentions are behind it.

It was to transmit information about the current status of the device.  I also wanted to show that the new transformer works well.  We are no longer tied to having to use Fuji AA transformers.  Sorry that the video bugged you so much.

Must be a Freudian thing beyond me. This Forum is full of such psychological interactions. I suggest a video art forum if the point is a well made video for entertainment purposes and self-portrayal.

I find it strange that this is coming from you considering you were the one trying to encourage me to do things on my videos if for no other reason then to just to impress people.

"But I rather believe in big air coils, if only because they look so cool; like Frankenstein technology from the 19th century. Strange claims have to be backed up with strange looking contraptions, otherwise people do not believe them. So, if you want a huge audience for your YouTube videos, put some huge coils in them."

If I ever put huge coils in my videos it will be because they are crucial to the operation of the device, not to try an impress viewers of my videos.

Take a photo of a simple hand drawing with some notes on it, that is more than enough for electronics buffs.

There is more complexity to the transformer then can be shown in a simple hand drawing .  Take apart a Fuji AA transformer and you will see what I mean.  Everything else that is important I have already shown in a simple drawing.

There are a handful of folks handing out information in this thread, but I do not understand what you want to say? Do you want to tell us how great you are? We should set up a thread with the title "Look what I have got, but I won't tell, because I or the thingy are too good for you low lifers".

While you are waiting for me to share more information you could try replicating the circuit schematic I already shared in in the past with the actual parts specified in the schematic.  I think it's cool that you got it working with the fly back but it's not the same as what I specified in the schematic.  It probably has a different amount of "turns" and "wire" than a Fuji AA transformer has.

The reason I am still waiting on doing the build video is that the parts for building it are all on order.  I do not really want to take apart something just to rebuild it on video.

[nievesoliveras]

Because no body is giving @lasersaber any money to buy parts, he said that he make videos and allow ads on it in order to cover the expenses he has experimenting to share with us.

The least we should do to support him is to watch his videos once in a while instead of downloading them and watching them from our hardisks.

That way he can keep sharing with us his knowledge.

Jesus

[Munetaka]

Neves Oliveras

Jesus, tu entiendes el circuito de lasersaber?
Es decir, la parte del transformador alto voltaje y la parte del secundario y su bobina bifilar.

Espero que entiendas español ^^

un saludo

[conradelektro]

@lasersaber:

Thank you for your reply, I appreciate that. For me the message of your videos was "replicate that, so that we learn more". Well, my question therefore was "What do you you want me to replicate".

To go on after that misunderstanding, I post your circuit as I understand it. My main issue with your circuit is the coil at pins 2 and 4 (which I labeled coil H in the drawing):

- If it is left out, we are back at Slayer's circuit, which I tried with self-wound coils and I got good results (still 10 to 20 mA power draw at 12 Volt or even 24 Volt). See at the beginning of page 8 in this thread and on page 7.

- If it is there, I would call it a "trigger coil", which triggers the switching on (rather than off) of the transistor.

This "trigger coil" gave me much trouble with my little fly back transformer. May be it is there where the Fuji-Camera-Transformer comes in. I now got some 10 fly back transformers (all different, for obsolete PC-monitors). And before I go into them I want to learn more about this "trigger coil", because it is crucial according to my tests. At least it is a reason for me to go into self wound coils or transformers, in oder to shape this trigger pulse just right (by adjusting the number of turns of this coil).

Since your circuit seems to perform interestingly well as far as power consumption is concerned, I hoped to get some solid hints from you about this trigger coil?

Drive coil and secondary coil will work within a wide margin (the only real drawback in case of error will be less Voltage), but the trigger coil is the determining factor for success.

Bifilar coil: I could not see a benefit in the bifilar coil over a capacitor (connecting the base of the transistor to +Vcc), but I keep my mind open. Bifilar coil or capacitor, it is there where the "slowing down" of the frequency happens. The trigger pulses are short and should rapidly follow each other (going to over a Megahertz, like in the Slayer circuit), but they come far apart because the base of the transistor somehow does not recover quickly. To me it looks like the base goes below the emitter and the transistor takes its time to recover from that normally unwanted situation, because the base finds high resistance everywhere to offload a negative charge.

The high resistor (1N60 diodes or Mega-ohms) between base of the transistor and +Vcc (via the bifilar coil or a capacitor) does not pull the transistor up (into the ON-state) because the current is too little. It is the current from the trigger coil or the secondary which does it. And it seems to be the negative part (of the sin-curve) that causes the delay (because of the situation "base below emitter"). Remember, in an ordinary Joule Thief, the base is pulled down by the trigger coil (the transistor is shut OFF).

In general: May be I always misunderstand the purpose of this forum (in my unbounded naivety). Isn't it to share? Or I am completely wrong? And I get disappointed when people make it so difficult to follow what they are doing. If you show something to people, don't you want them to understand as well as possible what you are offering them? Or is the purpose something else than offering information? Well, I am too dumb to get it, excuse me for my thickness.

Greetings, Conrad

[flathunter]

@Conrad

give lasersaber a break.  You do nice circuits, but he was the only guy who openly shared this project - as such its really his thread.  By combining various bits and bobs that you and xee and kooler and lasersaber showed, i can now get a 36W CFL lit for ages with no battery - IM CHUFFED!  And its all thank to sharing - which we all do as best we can.

@ Lasersaber

keep posting - theres a good reason why you get a lot of views and fans out there in the land of internet.  Its precisely because you do show openly how to make interesting devices.  Thanks!

@everyone else

where are the next ringers?