I think the manual is wrong as F104 fires magnets, trapdoor, ball eject etc, but can try this test. I also have the original power driver that works fine but I lost confidence in when it cooked a fuse holder while just being on idle. Got it fixed but replaced it with the rottendog seeing I had this spare. Will have to try all these suggestions on the week end, bit also need to get my hands on 3 amp slow blows too. Got lots of fast blows though.
