4 resistors and 3 capacitors, looks like. Has anyone ever run a frequency response test on this thing? Bet it rolls off at about 2 or 3 Hz, moderately hard, but not too hard, not enough there. 2 caps are probably bypass, 2 resistors are probably for current limiting or bias, so 2R 1C active filter circuit. Maybe 3R 2C, but I doubt it. I'm obviously guessing a bit here, but it should be very easy to make a circuit that does the same thing and better. I'd love to do that. Used to make rack mount bi-amp crossovers for pro use among other things. This should be much simpler. And a ton cheaper than VW's price, whatever it is. tom On 29 Jul 2003 at 18:07, G. Lee wrote: > If you ever wanted to know what is inside the VW factory AFM harness I've > posted some pictures on my web site. > As everyone knows, this harness was sold by Volkswagen to address what we > refer to as "Vanagon Syndrome". > VW part number is 025 906 302. > It is an active device consisting of an op-amp and some resistors. The > "Capacitor Fix" seems to work for some people, although it is passive in > operation. > See > http://www.telusplanet.net/public/gary2a/rack/afmharness/afmharness.htm > > Gary Lee > http://www.telusplanet.net/public/gary2a/rack/vanagonrack.htm >
------ Tom Ring K0TAR, ex-WA2PHW EN34hx 85 Westphalia GL Albert 96 Jetta GL The Intimidator taring@taring.org "It is better to go into a turn slow, and come out fast, than to go into a turn fast and come out dead." Stirling Moss |
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