Joule Thief

[FreeEnergyInfo]

hi xee2

here's the flyback schematic with pin labels for the samsung flyback.
[/quote
PLYZ VIEV

http://www.youtube.com/watch?v=lfFlfeg6AfM&feature=channel_page
http://www.youtube.com/watch?v=qqiYDxMsayw
http://www.youtube.com/watch?v=S_RZJJeB-a4&feature=channel_page

[xee2]

@ jeanna

I don't dare touch this to anything until I can get this answer!
But, I would like to try it outside on my EB and see what goes .

Better to be safe than sorry, but I think you are being overly afraid. Put a neon from HV output to one of the primary inputs. Then touch a 1.5 volts AA battery across the primary terminals. The neon should blink. And you will have done your first successful test using an ignition coil. This should be safe to do. Maybe you will not be so afraid once you see that there are no big sparks. But do not touch the High Voltage output terminal with your fingers while you are touching the battery to the primary inputs or you may get a big shock.

[resonanceman]

Hi xee2,
I have 2 questions to ask you.
Q#1
I cannot find where you tell how long the charge time was?
Was it instantaneous?
I can get 4 or 5 seconds from a mere touch to turn the light on then let it run down.
4 seconds of on and it takes 26 seconds to go out, and the components are different etc. but I would like to know how long the charge time is for the 30 sec run time.

Q#2
I have been thinking about the ignition coil.
I measured across the 2 screws and the amount was 2.2ohm.
When I measure from either of those screws to the end of the secondary in the pipe, I get um 13 ohm... I forget exactly, but the point is it is the same amount.
I am still trying to figure which is the primary that is connected to the secondary. There is a + and - sign on them, so which is the 'twisted pair or center tap'? Would it be the + just like my joule thief + side?

I don't dare touch this to anything until I can get this answer!
But, I would like to try it outside on my EB and see what goes .

thank you,

jeanna

Jeanna

WHen  I was playing  with  my ignition coil  I got  about the same  results  with  both   connections   on the coil

I was connecting   though one connection and the  HV   tower    for  flyback .
It  had  the largest  flyback  pulses that  I have seen so far using  a flyback  transformer  as a JT coil .
I  tried  hooking it  up  the same way to  a couple " normal" JT coils   they didn't seem  powerful enough ......  the ignition coil  choked them .

gary

[innovation_station]

No worries, when your flyback arrives, just doublecheck and DMM across the drive and trigger coil pins, across pins 9 and 10 you should see ~0.6 Ohm across pins 1 and 2 you should see ~1.2 Ohm. I look forward to seeing it running.

yucca ...


2 ohm 4 ohm 8 ohm ...   speekers ...      hummmmmm

ist!

[jeanna]

@ jeanna

Great. What size capacitor are you using?

It is a 1F 5.5v supercap. It is the kind used in computers for memory loss protection, I think.

Are you going to post your circuit?

It is just an ordinary joule thief circuit with the supercap in the battery rail. But that is a good idea so there is a visual for people.

Ok thanks xee2 and
Gary,
I will just go ahead.

But first, I made a movie for the datalogging thread.
There was a 1.9 EQ 10 minutes before I checked the website and I grabbed my camera and scope.
I saw lots of spikes and I will give you the youtube address when it is uploaded... OK?

BBS

jeanna