Joule Thief

[jadaro2600]

Some of you were experiencing large voltage differences between 'earth' and coil.  Who and how?

Was there anything more to this, did anyone make a note of their experiments?

[jeanna]

Jadaro,
could you give an example of what you are asking about?

thank you,

jeanna

[jadaro2600]

Well, that's just it, it was a couple of fleeting comments, you noticed this when you first posted results from your oscilloscope, that higher voltages were attained by grounding some part of the JTC.

Perhaps, it was the secondary? ..it came off as a sort of greater effect from grounding.  If need be, I'll go back and try to bring up some quotes, but I'm somewhat overwhelmed for time lately.

[jeanna]

@MK1,
A and C are on one side of the split. A is on the underneath side of the wind. It comes from underneath.
B and D are on the other side of the split. B is on the underneath of the wind. It comes from underneath.

Hook up A and B to the 'ac' tips of the bridge.
Hook up C and D to the pos and neg sides of the bridge.

All wires are attached to something.

Splice a load in the wire A between the AC point of the bridge and the toroid.

Is that what you did?

thank you,

jeanna

[Mk1]

@jeanna

There are 2 pair of coil in series , each pair are made from one coil on each side of the toroid, Test the pair to make sure they are connected properly meaning you get good voltage out and , and remember that like led they are polarized, only on one side(one direction) can you use the magic of crosswind pickup coils . Then connect on those 2 pair to the bridge and test with meter where it say load.

Give me dc voltage with full bridge (4 legged bridge or star 4 diode ) from one coil , then 2 coil connected is series (one from each side) then voltage at the load.

Mark