20 August 2020
- Last edited 21 August 2020
Same as you, I understand what Don and others was saying, but this is a little difficult to visualise.
I particularly like what Don said:
A coil will load and unload at its natural frequency.
I always like to see and understand the Coil Lengths for what they are and what they are meant to do! Whats why I posted the Image some time back of the Sine Wave and the Wire Lengths:
Looking back, I could have done this better! I should have had the Brown Wire as a Half Wavelength! Still the idea was there, and the supporting Videos on Antenna Theory were a help also.
Looking at the Wire Length and the Potential, we see Potential is maximum at 1/4 or Quarter Wavelength.
We know from our Antenna Wave Theory Videos:
That Half Wave is normal for Dipole Antenna, and Quarter Wave Antenna must be grounded to complete the extra Quarter Wave.
Electromagnetic Waves are Important!
I think it is important to say, remembering the short Wave, the Input Coil has only one job to do, get the Potential Up! Maximum Voltage! We need to get the Partnered Output Coils up to Maximum Voltage in the Shortest Possible Time, so this would be be at 1/4 Wavelength as seen above! Also, the best possible method to do this is via Electromagnetic Wave Theory, Resonance, Also known as Antenna Theory!
Practically, your Partnered Output Coils Length = either Half Wave with no Grounding, or Quarter Wave with Grounding!
Your Input Coil will be 1/4 the Partnered Output Coils Wave, either half Wave or Quarter Wave. It is much easier to wind 4 to 50 turns than it is to wind several hundred at a time so Tuning the Input Coil to this wave length is much easier.
NOTE: Fighters ZPM works when Resonant, this is the same thing!
Best wishes, stay safe and well My Friend,