[quote author=e9999 link=board=2;threadid=15744;start=msg150367#msg150 367 date=1083695306]
will this cut your head off if you happen to be sticking it outside at the time?
E
[/quote]
The way the circuit works is it monitors the amp draw of the motor. When the windows raeches it's limit wether up or down the amperage spikes. After a second of this condition the cicuit turns off the solenoid. If your head was out the window the motor would drive the glass into your head until it saw that amperage spike and then shut down. This is a far better circuit than limit switches as they wouldn't stop if there was an obstruction.
For you Eric, considering the contents of your head it might well make it through
I did stop by the electronic shop and they indicated it was a blocking type diode so no real specs just a diode that can handle 12v and a small load.
For anyone who might want this but isn't comfortable doing it, PM me, we can work something out provided you give me a good assembly.
And since I cleaned my contacts the windows have been operating with greater speed. I used some cleaner found at radio shack that was aerosol witha brush attached.