prk@charm.UUCP (Paul Kolodner) (08/26/85)
I don't know much about "Wonder caps", but I do know stray inductance when I smell it. If your friend has to put his wonder caps in an external box because they are so big, then it sounds to me like he's just added more inductance in the external wiring than the old capacitors had. Also, how much leakage do ordinary capacitors have? After all, audio systems typically have impedances that are rather low - 50kOhm in a phono preamp input, 8Ohms for speakers, for example - not like some integrating circuits where you have to clean the flux off the circuit boards to keep the stray leakage below the picoAmp level. Reducing nonlinearities sounds important, but at first glance, it strikes me that some of the other claims about these goodies aren't worth worrying about. Any coments? (By the way, the remark "Yeah, but they made the system sound better." will not be taken as a useful response to the questions I raised. I would like to understand things in a little more detail than that.)
hachong@watmath.UUCP (Herb Chong) (08/27/85)
In article <731@charm.UUCP> prk@charm.UUCP (Paul Kolodner) writes: >Reducing nonlinearities sounds important, but at first glance, it strikes >me that some of the other claims about these goodies aren't worth >worrying about. Any coments? (By the way, the remark "Yeah, but they >made the system sound better." will not be taken as a useful response >to the questions I raised. I would like to understand things in a little >more detail than that.) i think that two articles in Audio in the early spring of 1980 by Jung and Marsh are what you are looking for. both are professors of EE at a university which i can't remember right now. i have the articles buried somewhere at home. they are a long discussion of capacitors and the consequences of real capacitors vs ideal and steps to take to make them more linear. often, this is by replacing them with better ones or bypassing them. i have done this to my amp and the improvement in SNR alone was worth it. the rest may be all imagination. Herb Chong... I'm user-friendly -- I don't byte, I nybble.... UUCP: {decvax|utzoo|ihnp4|allegra|clyde}!watmath!hachong CSNET: hachong%watmath@waterloo.csnet ARPA: hachong%watmath%waterloo.csnet@csnet-relay.arpa NETNORTH, BITNET, EARN: herbie@watdcs (will disappear soon)