  We present the first experimental realisation of Bose-Einstein condensation
in a purely magnetic double-well potential. This has been realised by combining
a static Ioffe-Pritchard trap with a time orbiting potential (TOP). The double
trap can be rapidly switched to a single harmonic trap of identical oscillation
frequencies thus accelerating the two condensates towards each other.
Furthermore, we show that time averaged potentials can be used as a means to
control the radial confinement of the atoms. Manipulation of the radial
confinement allows vortices and radial quadrupole oscillations to be excited.
