Thane Heins Perepiteia Replications

[minde4000]

Minde, why not spent 8 hours building a winding jig and then less than one hour winding coils?

Because I care that each wire will go side by side without gaps overlaps or other by guiding both wires while the coil spin on the winding jig (drill mounted sideways with variac). I do not wind @1000rpm+ . I care about coil perfomance efficiency and capacistance.

Minde



M

[i_ron]

@I_ron
Tnx man for your input and drawings. I appreciate that.
snip

What do you think about I core and bifilars Ron?

Regards Minde

Minde, As others have already commented, your coil windin g is superb!

I have no problem with "I" cores, "C" cores or even "E" cores. Just that it is customary to reverse the connections to the center leg's coil in such a situation.

This is a common theme when you connect more than one coil, is to check to see that the voltages add. Anyone can (and should) do this experiment with three legs, the cores don't have to be connected, three "I" core will do if spaced over three N S N poles.

This is the fallacy of the Thane E core coil, is that the outer coil is wound over three legs. The setup then starts from a one down position where when you short the center coil and remove it's influence the outer coil, all of a sudden, springs to life. It is a false indication of success.

Just a tiny bit of logic and follow the sequence through. It is not hard to visualize. The outer coil 'sees' two positive going and one negative impulses at any one instant of time. (or two negative to one positive) Remove the center core by shorting it's coil and you have two positive impulses that add. But the bugaboo now is you are left with a "C" core over two north poles! A win win situation, NOT.

Bifilars YES! They have been my best producing coils even the back and forth way I wind them...

I am most pleased to see you do the experiments... seein g is believing.

Take Care,

Ron 

[CRANKYpants]

Because I care that each wire will go side by side without gaps overlaps or other by guiding both wires while the coil spin on the winding jig (drill mounted sideways with variac). I do not wind @1000rpm+ . I care about coil perfomance efficiency and capacistance.

Minde
M

HAVE YOU POSTED A PHOTO OF YOUR WINDING MACHINE HERE YET?

T

[minde4000]

HAVE YOU POSTED A PHOTO OF YOUR WINDING MACHINE HERE YET?

T

It might be somewhere in a background. I wind bifilars using drill and variac like most ppl because that machine is for single wire and + it sux. Now I wish my inner was wound all the way and not 2/3rds 55 ohms only.

Anyone know where to buy  I core bobbins?

Minde

[minde4000]

Hello minde,

There is a proof that this is exactly the way the fields develop because you and thane reported repeatedly the "eery sound", sort of a hammering-sound occuring if the center-coil is shorted

Regrads

Kator01

The only time I was talking about the sound when I had I core not E core  but that does not mean that you all are not right about poles. I will try to find I core bobbins.

Minde