Joule Thief

[Mk1]

@ pirate

Take the 4 diodes in the corner of the transformer picture you posted on page 76 to make a bridge.

[Pirate88179]

@ MK1:

So, it is like a secondary right?  Except, the input is not pulsed dc it is already ac and yet, you are stepping it up again.  I have not even read anything about this in any of my books.  I will do it.  Going to be a busy week for me but, I will squeeze in some time for this when I can.  Thanks for this info.

OK crazy idea time:  Let's say I get this to work like you did.  Then, what if we took those two wires from the "extra" windings and carried them over to yet another toroid?  Still running on the same AA bat, same transistor and resistor on the original JT.  Would this then jump the volts up even higher?  Possibly the power as well?

Bill

[Mk1]

@pirate

I did do that, and pretty much anything works , listen i got 140 volt out of i single jt.

Coil in series = volt + volt
Coil parallel = amp + amp

I almost forgot start and stop the winding at the same place as the other.

[electricme]

@MK1
Wow 140v from a single AA 1.5v battery, thats pritty good.

I have 2 outputs from my single JT on just 1 torrid, so I am happy with that, however I read Bills post he made a JT and wound another torrid and placed it in series with his 1st JT and got more power out.

OK Bill, now this is accellerating this thread, so I have just stripped my 2nd largest torrid, and as MK1 said pile on the turns, so I'm going to do so.
I will wind on, primary 50 turns
Secondry, as many as I can jam on it (go 4 broke ha ha) this should be good, Ill call it my JUMBO TORID
When this is done I will post the results, if it works or not.

Its taken most of the day to read up since late yesterday, man theres a lot of info here. lol

If it has high enough output, then I will rectify it, connect a capaciter accros this, drive a coil and try to capture radient energy from the back EMF to charge a batterty.

@IST
I havent seen your reply to my post yesterday, (it was a goodie ist),    R U OK
I been to look at your videos, they given me some information, for instance, if you drive a coil with 12v DC, while holding the junctions of the coil with your fingers, then dissconnect the power to the coil, what happens? what do you feel?

Answer ---- a wacken great pulse---- this is the stuff we need to try and harness----- this is the key to get more output.

When a circuit is closed for the 1st instant, the electrons pileup (a key) if one could harness this, then you got more energy ha ha ha ist true

If you tune the on to off energy to a coil, (on time to off time) you have made the energy, trick is to tap into it. Am I right ist? yes

hmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmm


I look forward to ISTs responce.

jim

jim

[electricme]

@all
Here is how I am winding my torids

Photo 0239.jpg = Get a small bit of cardboard, fols lengthwise to strengthen it, (hard plastic would be good also).
                          Cut a "V" in each end. The wire you want to put on the torid is wound on this former 1st.
          0237.jpg = I have wound the amount of wire onto the former, ready to thread the bobbin through the Torids hole.
          0236.jpg = Torid has been wound with the wire that was on the former.
          0240.jpg = Preparing primary with ladies nail polish so any loose turns don't vibrate. (keeps it together when I put the Secondary turns on.

Question, did anyone notice anything different with my primary?
There are 10 loops, I began at turn one and put 50 turns on the primary, then looped it, this is the 1st of 10 "taps", I then continued wrapping on another 10 turns, made a "tap" did another 10 turns, made another "tap" until I made all ten taps, I let the wire run out after 100 turns.

All "taps" will be soldered to a 10 position single pole switch, I select what ever "tap" to feed the + volts to, this will give me greater control of the output of the secondary coil.
If the secondary coil is goiing to put out hundreds of volts, then it is better to alter the output by the primary.

The secondary I will wind tomorrow, TO THE BRIM. ha ha