>>I think you'll find a 160 ohm ESR transformer has horrible
>>regulation.
> Don't forget the effect of primary resistance. It may seem
> low (often so
> low that it's difficult to measure accurately) but the
> value has to be
> multiplied by (turns ratio)-squared, and then added to the
> secondary
> resistance.
I should have been clearer. Of course the ERS is a
combination of losses that are the effective resistance.
We can be sure the actual ESR is always higher than the dc
secondary resistance.
73 Tom
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