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G3XBM Project Scrapbook Issue 1

Scrapbook of Projects "This is a scrapbook mainly about the projects that I have designed and built over the years. It is a scrapbook of ideas and a bit of a brain dump. These circuits worked for me, but I hope they are springboards to your own ideas: I would be most surprised if many cannot be improved. Please treat these circuits as starting points. Do not be afraid to try changes. They may make things worse or they might make them better. Often these circuits are very simple, so if it all goes wrong just start again! Warm up that soldering iron and get experimenting. In most cases, these circuits were built in the back of the garage without fancy test gear. Useful things would be a multimeter, an oscilloscope, a signal source and an effective capacitance/inductance meter. These days some very sophisticated test equipment can be bought quite inexpensively." 4. Introduction 6. Copyright and Errors 7. Shack 8. MePads and Me Squares Antennas Receivers 9. Dipole formulas 9. 10m dipole 10. End fed antennas 11. Homebase-10 10m halo 12. 70cm Moxon 13. 70cm 4 element yagi 14. HB9CV antennas 15. Ferrite rod transmitting antennas 17. E-field probe receiving antenna for 137 kHz 18 2m half-w

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