> what is the failure mechanism of all these conductor plates? It seems to be > so common.
The Duh answer is: bad connections. I say Duh, because those plates are essentially nothing _but_ connections. The two speed sensors are just coils of wire, so if one opens up... bad connection! The solenoids are separately replaceable, the plate part is just: connections. Connections that live in a hot vibrating oil bath, how is THAT a good idea? :-) With electronics, once they figured out how to make durable silicon and the like, which they didn't always know how to do wrt electro-migration and poisoning, if it didn't smoke (silicon, mostly) or dry out (capacitors), if it stopped working it's due to a bad connection. Somewhere. Similar to a mechanical adding machine. 99% of the failures are lubrication failures. Not that knowing this really helps you very much. There are a LOT of lubrication points in something like a rotary calculator, and there are a LOT of connections in electronics. It does not help that modern construction uses smaller traces than necessary for low-performance parts, which are more fragile than the older, larger geometries. -- Jim _______________________________________ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com