Electrons were accelerated by means of a single resonant cavity operating at 75‐cms wave‐length. Energies as high as 0.75 Mev were attained by single‐stage acceleration, the electrons entering the cavity at virtually zero velocity. By turning the emergent beam about, and reinjecting it into the cavity in the opposite direction two stage acceleration was achieved and 1.25‐Mev electrons were produced. Possibilities of a ``shuttle accelerator'' are discussed.