JohnSwenson;576105 Wrote: > Damping the transformer takes a resistor and a capacitor in series, > connected across the secondary of the transformer. Theoretically you > should measure the transformer and compute the right value for that > particular transformer. I did that for every transformer in my house > and found that the values of 330 ohms and .022uf work well for almost > all of them. The resistor should be a carbon comp and the cap a > polypropelyne, I use orange drops. Thats it, its cheap and easy and can > give wonderful results. > > Do NOT try this for signal carrying transformers. They have resonances > too, but dealing with them in such a way as to not muck up the audio > signal is not trivial. Most good audio designers will have already > dealt with the resonances in an audio transformer, its just power > transformers that seem to have been neglected. > > Yes, my own personal opinion from my testing and listening is that > expense of a power cord has little correlation to any difference its > going to make in sound. > > There IS another mechanism that concerns a power cord: RF resonances in > the cord itself. That one is much harder to measure and is again > somewhat dependent on whats around it. This is a case where different > designs are better than others, but I have not been able to determine > whats what yet. This is frequently confused by the transformer > resonance issue: what gives best results with one, may not give best > results on the other. So the best bet is to damp ALL the transformers, > THEN you can try different power cords, they may still sound different, > but now you are probably hearing differences in RF performance. > > John S. Thanks that's very helpful
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