1. Got a ferrite toroid, 35 mm OD, 21 mm ID, 15 mm height.
2. Wound a 13 turn bifilar coil, 24 AWG wire.
3. Wound another 13 turn normal coil, 24 AWG wire.
4. Connected the bifilar coil to an RF generator.
5. Connected the other coil to the osciloscope.
Results :
- I found one frequency "F" where the output was "F x 3". Why ?
- If I connect the generator to the non-bifilar coil, that same frequency was
seeing at the output. So, F in = F out.
- That frequency ( 6 MHz ) seems to be the toroid ressonant frequency.
Ideas ?
Marcelo