John:
Winding bifilar or trifilar is easy if you wind the wire beforehand.
Take two or three pieces of wire about 6' long and attach one end to something solid.
Then carefully align them so that they are of uniform length into a bit holder of an electric drill
(preferably a variable speed one). Bring the wires taut and slowly wind them together with the drill.
You are finished when you have a "twist" of about 4-6 turns per inch.
This will give you a uniform winding, and a 4-5' piece of dual or triple wire for all your projects. (Yes, these
windings are very common in homebrew projects). This is pretty much a standard way of doing it; YRMV.
The nice thing is that it doesn't matter too much what the wire gauge is -- even mixed gauges will work ok
if they are not too far apart.
Hope this helps. Hi.
john
AD5YE
