DIY Mad Litz Wire for ULTRA FAST PI Coils

[ionut_mtb]

If i understand you are using only twisted finest enamell for making the coil? But if measure lenght of wire for making the coil, by twisting it the wire will become shorter, and uH lower. The enamell will not add capacitance in the windings? You have a picure of your coil wire finished? Thanks

[Sean_Goddard]

OK I have wound a coil for the SM PI using the following method and it is F A S T...

Calculate the overall length of wire you need to wind the coil you want to make and cut TWO LENGTHS of the finest enamelled (magnet wire) you can find, just TWO strands of it. Secure them at one end and then using a HAND DRILL, twist CLOCKWISE until you have around 4 turns per inch.

Take two more strands and twist ANTCLOCKWISE until you have the same 4 turns per inch.

Make up FOUR sets of each, clockwise and anticlockwise.

Now take ONE SET of ANTICW and one of CW and wind THEM together, CLOCKWISE.

Repeat the above but this time make the twist ANTICW.

Repeat the above process using OPPOSITELY wound pairs until you have TWO strands of oppositely wound wires bundles. Wind these together in whichever way you choose and use to make your coil. You will end up with a stupidly fast mono-coil with a razor sharp rise time.

You can starts with any number of strands you want but you are aimng for the FINAL CSAe (cross secional area EQUIVALENT) or 16AWG, thus you will need to work out how may "pairs" you need to twist up to get to the final COPPER CSA (not bundle as that includes the enamel).

Points to note:
You MUST keep a good tension on the wire at all times (until finished) or it will come unwound.

For your length, you can calculate the number of turns on the drill, simply take the length in inches X 4.

This stuff is a ***** to solder.

This stuff is virtually non-inductive (hence the very fast rise time).

When winding (the final coil with the finished bundle) you have to keep a fair amount of tension on the wire or it will bunch up and look like a birds nest.

You need a LARGE outdoor space to make it and usually two people make the whole process a LOT easier.

Your turns per inch MUST match on the oppositely wound strands in order to get the best effect.

Starts here > http://www.ebay.co.uk/itm/42AWG-0-06...3D112332885949
for wire.

ENJOY!