From: Bruce Griffiths <[EMAIL PROTECTED]> Subject: Re: [time-nuts] re low noise regulators Date: Mon, 17 Dec 2007 11:19:05 +1300 Message-ID: <[EMAIL PROTECTED]>
> [EMAIL PROTECTED] wrote: > > Hi Bruce, > > > > The capacitors' microphonic sensitivity may actuallyy be more of a factor > > here. > > > Are electrolytics microphonic? > Ferroelectric (X7R, Z5U,Y5V, X5R, etc but not NP0/C0G) ceramic caps are > microphonic All caps is more or less microphonic. Even a pair of plates with vacuum between them are microphonic. However, the higher capacitivity of the dielectrum, the higher microphonic sensitivity can you expect. You can as always reduce the microphonic aspect through mechanical design, including wise use of symmetry, but the effect will always be there. The point being, the effect is always there, but the coupling degree may be stronger or weaker. Traditionally electrolytics have not been the main concern thought. But they are not always the best choice for many other reasons, as you are fully aware. Cheers, Magnus _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
