At 09:22 AM 1/20/2002, Larry Alofs wrote: >Someone ought to reverse-engineer one of these things to see what the VW >solution really consists of. The service bulletin says something about >"active components" (transistors). It's an active low-pass filter. I don't know the time constants. The capacitor approximation was arrived at experimentally by people trying 10 uF and deciding that 20 worked better. Dunno whether they did any math in the process. In general you want something that passes say five Hertz and blocks say fifty. david
-- David Beierl - Providence, RI http://pws.prserv.net/synergy/Vanagon/ '84 Westy "Dutiful Passage" '85 GL "Poor Relation" |
Please note - During the past 17 years of operation, several gigabytes of
Vanagon mail messages have been archived. Searching the entire collection
will take up to five minutes to complete. Please be patient!
Return to the archives @ gerry.vanagon.com
The vanagon mailing list archives are copyright (c) 1994-2011, and may not be reproduced without the express written permission of the list administrators. Posting messages to this mailing list grants a license to the mailing list administrators to reproduce the message in a compilation, either printed or electronic. All compilations will be not-for-profit, with any excess proceeds going to the Vanagon mailing list.
Any profits from list compilations go exclusively towards the management and operation of the Vanagon mailing list and vanagon mailing list web site.