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9:1 balun
Primary winding 30 turns,secondary winding 10 turns,after checking for proper solder joints, you may pot all components in epoxy
post 03 Mar 2024
Toroid & balun Links →
How to Build an UNUN
If you want to built your own UNUN, up F114-67 ferrite core, a few feet of #14 enameled copper wire enough for 9, bifilar turns
Homebrew
A universal matching transformer giving 1:1; 4:1 balanced and 9:1 unbalanced
il balun balanced - unbalanced
1:1 presenta al connettore una linea sbilanciata, avendo in ingresso un'antenna bilanciata
Toroid T200 for long wire antenna
Balun unun to feed a long wire antenna ideally without a tuner a 9:1 voltage unun design using a T200-2 Toroid core was selected
200
If you want to built your own UNUN, up F114-67 ferrite core, a few feet of #14 enameled copper wire enough for 9, bifilar turns
A universal matching transformer giving 1:1; 4:1 balanced and 9:1 unbalanced
1:1 presenta al connettore una linea sbilanciata, avendo in ingresso un'antenna bilanciata
Balun unun to feed a long wire antenna ideally without a tuner a 9:1 voltage unun design using a T200-2 Toroid core was selected
PIC-Keyer This project describes the construction of a real "QRP" keyer with a small microcontroller PIC 16F84, with slightly modified hardware also PIC16F62
Radioassistance Radioassistance E Kenwood Dealer, vendita ricetrasmittenti, antenne, parti di ricambio, elettronica
Conrad Electronic Electronic components online shop in German and Italian