Let us say you had a double output transformer you are thinking of using to get high voltage. Chances are it is center tapped. One can measure the ohms of each leg with the trans unconnected to anything. If two outputs are the same, say 10 ohms and two connections also show 20 ohms, it is a centered tapped transformer. Which is like one long wound single coil tapped in the center. If it is this type, you may as well ignore the center tap and use the extreme ends of the coil for it will give you double the voltage. If there is no set of connections that gives double the resistance, than it is two separate wound outputs. Either way we will have to phase shift one leg 90 degrees.
In regards to frequency, more turns will be needed on the phase shifting toroid trans as you go down in frequency. The lower the freq, the bigger the components have to be. How big? I don't know. Maybe someone else can share here?
Should work for TV? One advantage of this antenna for receiving is that it works for all freqs. If we are using it to transmit or to generate power, we want to try and make the components resonant at the freq of our oscillator. If we are using an output transformer we happen to have on hand, we should try and make the input side be part of a resonant tank circuit. We can add a capacitor across the input connections and vary the frequency til we hit resonance. This will create the highest voltage on the output side. If there is iron in the core of the tranny, it will limit how high in freq we can go.
In regards to frequency, more turns will be needed on the phase shifting toroid trans as you go down in frequency. The lower the freq, the bigger the components have to be. How big? I don't know. Maybe someone else can share here?
Should work for TV? One advantage of this antenna for receiving is that it works for all freqs. If we are using it to transmit or to generate power, we want to try and make the components resonant at the freq of our oscillator. If we are using an output transformer we happen to have on hand, we should try and make the input side be part of a resonant tank circuit. We can add a capacitor across the input connections and vary the frequency til we hit resonance. This will create the highest voltage on the output side. If there is iron in the core of the tranny, it will limit how high in freq we can go.
Comment