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  • Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

toroid

  1. JulesP

    Splitting and rejoining ferrite cores

    I'm planning on constructing a step-up transformer using a circular ferrite core (see pic) and wondered if it's feasible to cut it into two semi-circles (which will lose some material) to make it easier to wind the 100 and 300 turns and then to glue it back together? I appreciate that it...
  2. S

    Permeability of MPP core, would this work?

    Hi, I am going to wind a toroid inductor for this circuit, but would a high permeability core of this type have any downsides? And is 34 AWG wire fine for this? Info on core: Core type MPP OD 39.90 mm ID 24.1 mm HT 14.5 mm AL value: 740 +/- 8% (nH) MPP Permeability: 550 (μ) Wire gauge: 34 AWG...
  3. R

    Toroid selection

    Hello, I have seen numerous Youtube videos on super high voltage Joule Thief projects. They are using small one inch ferrite toroids and from single 1.5 volt AA battery power a 3-5 watt 110-220 volt cree LED brightly consuming merely 200 mA of current from the battery! The following link will...

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