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Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ. |
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Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ. |
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In Reply to: Re: Isolation Transformer and switching transients posted by Jacques on August 10, 2005 at 12:10:52:
Hi Jacques,Thank you for the .pdf schema. I appreciate your help. And yes, x-rated caps are mandatory. There are lots of them types (rated for 250VAC mains) that can be ordered through our local RS-Comp.
Our mains V here on average should be 230V/60Hz, but our condo building gets 240 and even sometimes 245V in the evenings. What's worse is my 3kV iso-trannie steps up the voltage even more to 10V again (!), getting me around 250V at most times! The other taps in the secondary are way lower than 220V to be of any use.
I won't really worry about the 10V overvoltage if my phonostage's power trannie would not saturate (when I'm near the unit I could hear the mild vibration) and the unregulated DC filaments of my DHT tubes goes way up increasing distortion and shortening its life. That's why I used my spare Matsunaga automatic voltage regulator to step it down a bit. I plug-n all my electroncs (amp/preamp, turntable, etc) to the AVR->Iso-Trannie. If I can implement your transformer trick (with a friend's help) I could use the AVR for non-audio stuff.
Oh BTW, Jean Hiraga is one of my heroes....Best,
fred
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- Re: Isolation Transformer and switching transients - fred76 17:50:13 08/10/05 (0)
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