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RF Components & Circuits VE3KL Session 1

RF Components & Circuits VE3KL Session 1. Ferrite. Ferrite SWR Bridge Kit. Ferrite and Powdered Iron Toroids Transformer, SWR Bridge, Low-Pass Filter. FT50-43 4:1 Transformer. Kits and Parts. Low-Pass Filter… Powdered Iron Cores T50-6. 9 Turns. 8 Turns. Input. Output.

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RF Components & Circuits VE3KL Session 1

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  1. RF Components & CircuitsVE3KLSession 1 Ferrite Ferrite SWR Bridge Kit Ferrite and Powdered Iron Toroids Transformer, SWR Bridge, Low-Pass Filter FT50-43 4:1 Transformer Kits and Parts

  2. Low-Pass Filter… Powdered Iron Cores T50-6 9 Turns 8 Turns Input Output 8 Turns #24 9 Turns #24 Circuit Board and BNC Connectors in Kit Two T50-6 Toroids 9 and 8 Turns

  3. Hardware Tools Required 60 Watts Very Important With new blades Plus a small vice, optical magnifier, laptop PC

  4. Software Tools & Links : Free • Filter Design Software Elsie: http://tonnesoftware.com/elsie.html • Zplots: (Optional: uses Excel) Can use VE3KL Software http://www.ac6la.com/ • Kits and Parts for SWR Kit Manual and Data Sheets, Download the Toroid Calculator (include VB6 Runtime) Look under Toroids button http://kitsandparts.com/index.php

  5. Materials Selection T50-6 Powdered Iron FT50-43 Ferrite Low Loss Transformers Transmission Line Transformers EMI Filters High Q Coils/Resonators Band Pass Filters

  6. T50-6 Powdered Iron Core

  7. Inductance Formula • L = AL*N2/1000 uH • N = nr. of Turns • AL = 4 for T50-6 Iron Powder Core • AL = 440 for FT50-43 Ferrite Core • These numbers from Micrometals Data Sheet

  8. Fair-Rite 43 Material

  9. Micrometals Powdered Iron Cores

  10. FT 50-43 & T50-6 Make 1 ferrite coil (9 Turns) Make 2 powdered iron coils (8T and 9T) 8 Turns, 9 Inches: 9 Turns 10 Inches Measure L {Low Frequency with L/C Meter} Check Measurements against Formula Record data for filter design Ferrite Iron

  11. End of Session 1 Clockwise Ferrite Iron

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