how do you tin silk covered litz wire ?

[tiv48]

Thanks for the reply Mike it is modern .
I have 3 meters so i can afford to experiment a bit.
A guy on utube suggested burning ff the covering and quickly dipping into ethanol,
When i have had to repair ferric rod aerials where the litz wire has broken away from the pcb i have just used a very hot iron and not bothered stripping the covering this has worked ok.
but because the wire has to be connected to small pins i need to tin the wire first.
Rob T