Hi Ive been searching for small electromagnets (or Im happy to modify other products, like solenoids) for a project I have involving modelling - train sets, that sort of scale. Anyway, Im looking for low power, maybe 200mA or so, say 12V, and have some reach to pull at objects or other magnets to a cm or so range. but doesn't need to lift weights or anything like that. Think train set sized things like tiny doors or model cars. Ultimately I'll have a number of magnets directed by microcontrollers, with strength and polarity control. The electronics and software I can handle, but finding a supplier of small hobby electromagnets is surprisingly difficult. Wondering whether anyone can point me in the right direction? (I'll say please!)