Ok... I lied. It was my fault also. I need to have normally closed EOS installed, mine was normally open. That also caused the high resistance coil never to trigger and thus burning the coil when I applied the +48VDC current.
This is how it's supposed to look when done (or redone) correctly:
|2) A closeup of the connectors. I've decided to use 'hot-plugs' so disconnecting the solenoids will be quick and easy if they need repairs. It also makes it impossible to connect power in the wrong direction since the cables will have matching pairs.|
Also, I got my MP3 trigger today, yeah!
Now I just need to connect a powersource (buy a powerplug 'head' or drive it directly from Arduino's +3.3VDC) and get a FAT16 microSD flash card and I'll be playing MP3's like there's no tomorrow!