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Re: Electrolytic Bypassing Advice/Opinions Please.

(1) One of the caps I'm going to be bypassing will be a Black Gate 22 µF/50V. For this bypass I'm thinking of using either a 0.22 µF Dynamicap, or two 0.1 µF Black Gate NXs (non-polar) connected in series. I'm presuming the Black Gate bypass would be of better quality than the Dynamicap, but wonder if connecting two BGs in series would decrease the overall performance of the bypass.

BGs usually do not require a bypass.
Capacitors in series usually sound worse. The best way to use BG nonpolars is in a yin-yang paralell configuration. BTW the nonpolars must be specified for the same voltage as the main cap.

(2) There are two 470 µF/350V electrolytics that I'd like to bypass, but the high voltage rating limits my choices for the bypass caps. It is important to use the same or higher voltage rating for the bypass caps, right? (e.g. using a bypass cap rated at 100V would be a bad thing here, yes?)

It's not important, it's vital! If you place 350 V across a 10oV cap it will explode.
I suggest 1 uF 400V polypropilene caps. Beware of too much treble energy with lots of bypass caps. I prefer to buy a top-quality cap than bypass poor caps. The treble will "stand up" and shout.

Also, since you preamp has an outboard PS, replacing the last cap before the tubes (usually located in the audio board) gets you the most bang for the buck. Whenever possible, bypasses should be located close to the load, not on top of the cap.
I hope this helps
Carlos



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  • Re: Electrolytic Bypassing Advice/Opinions Please. - Carlos 09/25/0306:31:48 09/25/03 (0)


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