It seems obvious that the closer the transformer is to actual 10% regulation, the closer the VA approximation will be to the actual VA spec. Accent on approximation.
I only posted the information as an option, not a mandate.
Maybe the ARRL would be more interested in your quiz than I.All they have is the ARRL method to rely on and I claim it is NOT a useful guide.
BTW, one of the results in the above examples is getting close to the VA rating and would be a good first guess at the VA rating. Any ideas on which one?
I only posted the information as an option, not a mandate.
It seems obvious that the closer the transformer is to actual 10% regulation, the closer the VA approximation will be to the actual VA spec. Accent on approximation.
Maybe the ARRL would be more interested in your quiz than I.
I only posted the information as an option, not a mandate.
neither am i interested in his quiz, we are not his pupils, he is not our teacher......
ARRL has a wealth of experience that we can bank on, they are into doing things, rather that telling people what to do or think...
I do not keep unknown transformers with multiple secondaries.
As mentioned above, you have to make guesses as to the power distribution between secondary windings.
IMHO the only reason to keep a multiple winding "unknown" transformer is if you are going to take the secondaries out of it and wind your own. (or use it for very light loads).
As mentioned above, you have to make guesses as to the power distribution between secondary windings.
IMHO the only reason to keep a multiple winding "unknown" transformer is if you are going to take the secondaries out of it and wind your own. (or use it for very light loads).
If I have any good saved transformer, I first search on the net for its ratings if it has a part no. or I simply use it for much lower currents I can guess from its size. For multiple secondaries, guessing will be very difficult as the winding u want to use might be very thin.
If you want to remove a transformer from some discarded equipment, never discard the remaining parts as u can guesss the VA rating from this load much better than any guesses.
Gajanan Phadte
If you want to remove a transformer from some discarded equipment, never discard the remaining parts as u can guesss the VA rating from this load much better than any guesses.
Gajanan Phadte
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