STEORN DEMO LIVE & STREAM in Dublin, December 15th, 10 AM

[interestedinou]

Does anyone in here have any tips for winding toroids?

I've heard of a method in which you first wind the copper wire around a length of material that can fit through the center of the toroid. You take this length of material and keep putting it through the center of the toroid while making each turn.

[Groundloop]

@Bruce_TPU,

I can tune from a low audible frequency and up to a frequency that I can not hear
with the posted component values of the RA switch. Higher frequency gives more
output voltage. If I tune the base resistor down too much at high frequency then
I hear a click and the 555 timer blows up. My guess is that there is a feed back
of high voltages to the 555 output pin that blows the 555. Maybe negative. When
I find more time I will try adding a diode to the 555 output pin to prevent this.

But, yes, the output goes up in voltage at higher frequencies.

Alex.

[Groundloop]

@interestedinou,

The easiest way is to use several strands of wire together at a short length of
some few meters. Then you thread all the wire strands at once. Afterward you
just solder the ends together. It is less time consuming to solder than to thread
a single wire. I used 16 strands of wire on my motor toroid and had to solder 15
of the wires. But if you want a perfect winded toroid then you use just one wire.

Alex.

[Staffman]

Thanks Groundloop!!!

I'll try building the circuit over the next day or so and see how it goes. I have alot of grade 8 alnico magnets that might work. My other neo's are way tooooo big for this (finger crushers). If I use the big neo's I may have to make a slider to adjust the distance. I'll keep everyone posted.

[interestedinou]

@interestedinou,

The easiest way is to use several strands of wire together at a short length of
some few meters. Then you thread all the wire strands at once. Afterward you
just solder the ends together. It is less time consuming to solder than to thread
a single wire. I used 16 strands of wire on my motor toroid and had to solder 15
of the wires. But if you want a perfect winded toroid then you use just one wire.

Alex.

Thanks for the tip.

I may look at winding a toroid that way.

Are there any drawbacks to that method of winding?

Also, what is the drawback to having dual layers of windings?