For the $30 you also get a selection of 50 toroids, so not a bad price.
In a pinch, could probably use a pair of springy forceps in a vice on small toroids,
Or cut something vaguely like what he has out of plastic or wood.
The really tough toroids are the ones that are completely full of wire
where this tool might not be such a good idea.? Solution then is to use a larger toroid
of the same core material, adjusting the number of turns to give the same inductance.
Jerry, KE7ER
