Where to buy balancing taps?

[bl-is-future]

sorry for the late thank you. my inet has been down but thanks for all the links guys.

looking at the fp and tp connectors i am puzzled as to how these couldnt short your packs. or is there some kind of magic going on inside the tap boards. as fp taps have more + wires than - and the standard hyperion have the opposite. surely you could make something similar yourself? those converters just appear to be straight through wires. or is it me?