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Original Message
Re: Sorry, per the 9000ES service manual,
Posted by Allen Wright on April 10, 2007 at 06:56:06:
Hi,
>I'm looking for a Hammond step down. There is one toridal and one Ei type. The toroidal provides isolation, as they stated on the features<Not in my experience - toroids couple high frequecy hash and noise far more than an EI core transformer - unless they have made the toriodal in very special way.
>Why I need 100VZ VA power rating?<
Becuase it's far more than the player needs, therefore will not limit the player. A smaller transformer may well cause a loss of dynamics or other sonic problem.
> Why this can provide a line filter?<
Because, if it is a EI core, with the primary and secondard windings on separate bobbins, the high frequency response of such a transformer is poor - hence the high frequency noise & hash present on ALL wall supplies will not transfer to the player.
>Greetings to your beautiful city!!<
You know Schaffhausen?
Regards, Allen