ORIGINAL: Oilsands
so wanted to confirm the number on the transistor so that I can look for a replacement that will pick up the south pole magnet.
The 04E is the one RCEXL supplies. Alegro A1104
http://www.allegromicro.com/en/Produ.../1101/1101.pdf notice it will respond to either the north or south simply depending on sensor orientation. It works almost as well with a north pole from the back side.
http://www.allegromicro.com/en/Produ...olar/index.asp
Greg