SMPS transformer winding?

[Faringdon]

Hi,
When you are eg winding a PQ26/20 bobbin, it's a vertical bobbin so (if its a single layer) you have to start and terminate the windings to the same end of the bobbin.
So , if you need to wind say three single layers ....then how do you get the coil end "back across the bobbin" for termination?
Do you...
1....Suddenly stop the coil at n=x turns, and then do a right angle turn down across the bobbin and terminate?
2.....Spiral wind the last turn back across the bobbin so you can terminate it?

PQ26/20
http://www.ferroxcube.home.pl/prod/assets/pq2620.pdf

[jonpaul]

FTSS: usual garbage.

Read book  Smith Magnetic Components 

j