winding toroid transform

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winding toroid transform

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Antennas : Baluns

  • DIY isolation transformers - Article about isolation transformer construction to perform optimal impedance matching. Winding the FCP isolation transformer, includes interesting table for Winding Turns and Lengths and Core Configurations for T300 T200 T400 toroids
    [ Hits: 316 | Votes: 0 | Rating: 0 ]
Antennas : End-Fed
  • End-Fed antenna for 17 and 12 meters - Article about an end-fed anntenna for the 17 and 12 WARC Bands. 30 meters is not included in this project. This antenna includes a 14 windings unun impedance transformer using a FT-140-43 ferrite toroid, that should be enought for a 100W PEP.
    [ Hits: 539 | Votes: 3 | Rating: 4.33 ]
Software : Circuit Design
  • FT CALC 1.3 - Ferrite Toroidal Core HF Calculator - This EXCEL Program Worksheet calculates the safe operating conditons for a toroidal transformer operating between 1 and 50 MHz. Manufacturer data for complex permeability, magnetic dimensions, and saturation flux density must be available. Some core types which are commonly used in amateur transmission are included. The program produces limiting winding voltages for linear operation and temperature rise over the range of frequencies and power specified.
    [ Hits: 283 | Votes: 1 | Rating: 2 ]
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