Litz wire
Before commencing the procedure to solder litz wire as in TIP 1

Remove the plastic from an appropriate sized electrical block
connector(strip) and slide it over the end of the wire to be soldered
back up the wire enough to be able to solder the end properly.

After the soldering procedure has been completed and the wire end is
still hot. pull the connector gently back off the wire end and this will
give you a nice neat wire end and avoids the wire being splayed out.

If desired keep the connector on the end of the wire but pull it back so
that only half the connector is used, this leaves the other half to
insert what ever wire you want to join to the litz.

G3KEV