Joule Thief

[jeanna]

Hi gadget,
I don't know if this will help.
When I made my first Hazens replication, I mis-read the way he was turning the primary.

The way it should be is like a center tap.

One color ends and the next begins, but the way the turns go is a continuation . The thing that makes the oscillation happen is the fact that the joining wires/ the twisted wire which is actually a center tap, is the one that goes into the pos rail.

I hope this helps.
I was 1/3 of the way through mine yesterday when I got lots of volts etc. I am expecting this to work.

@Hazens,
I want to ask for a repeat explanation on exactly everything you have there.
What are the diodes and caps and where.
All of them, please.

@anyone,
I have a technical question now,
What is the easiest/best way to solder up the 3055 to make this a joulethief for HV?

thank you.

jeanna

[stprue]

Jim:

435 volts?  Wow!  I really have to make one of these.  Don't want to touch that one with the fingers.

Bill

YES it is time to start to experiment with more advanced   coils.....you must realise the eb jt Tech are at least the key for lighting potential free enggy!

[stprue]

Hi gadget,
I don't know if this will help.
When I made my first Hazens replication, I mis-read the way he was turning the primary.

The way it should be is like a center tap.

One color ends and the next begins, but the way the turns go is a continuation . The thing that makes the oscillation happen is the fact that the joining wires/ the twisted wire which is actually a center tap, is the one that goes into the pos rail.

I hope this helps.
I was 1/3 of the way through mine yesterday when I got lots of volts etc. I am expecting this to work.

@Hazens,
I want to ask for a repeat explanation on exactly everything you have there.
What are the diodes and caps and where.
All of them, please.

@anyone,
I have a technical question now,
What is the easiest/best way to solder up the 3055 to make this a joulethief for HV?

thank you.

jeanna

[jeanna]

Hi everybody,
I just got to the halfway mark of the newest 3T,7T now 78T well I made a few too many I will fix it, but first, some numbers and an observation.

First the observation.

No part of the secondary can get near enough to touch or overlap the primary.
I may stick a piece of fat wire to separate these.  The light barely lights, but when I fiddle with the loops nearest the (as it happens) base coil the light suddenly lights up. or goes almost off.
MK1 has been saying this. I just want to repeat and agree with it.

so, here it is so far,
EDIT: I fixed the problem with a string here are the revised numbers. Please disregard the earlier ones.

3T,7T,78T
23.1V I am sure of this
11.6KHz I am not sure. At many scales there are good waves 100Hz or 100KHz
27.8mA
220r

change the base resistor:

93V
25KHz
10mA
1.6mA with 103 Base resistor cap also
2200r

I will take a wee break and make a table. I see this needs to be near the last report. I will put them together later, but just for now the volts plummeted and the frequency rose from the 50T secondary to the 78T secondary. I have a feeling the volts are higher IF I can keep the secondary away from the primary.

jeanna

[hazens1]

New Diagram..