From: Mike Keitz > >The dwell time is the time that the points are closed. It gives an >indication of the condition and adjustment of the points and distributor. > It could be measured by deriving a "points closed" signal by comparing >the voltage at the coil negative lead (the points switch this node to >ground) to maybe 2 V. The voltage here can fly up to 200 V or more when >the points open, so the compare circuit has to be able to withstand that. you can easily achieve this with a series resistor and a zener diode with appropriate values... but then again - you all knew this before I wrote it. The reason I wrote this was just to test if I succeeded in subscribing the piclist to my new account. I think saying something is better than just sending a test message... -- ----Tampere---a-place-in-Finland-where-everything-gets-tampered-with---- http://www.funet.fi/~oh3nwq mailto:oh3nwq@nic.funet.fi -------------Jack-of-all-trades---master-of-one-(MSc-Ee)----------------