The design features and characterization of a new magnetized coaxial plasma source facility for the generation of energetic plasma stream flows are presented. Careful, yet simple design of a low-inductance (<or approximately=200 nH) external power delivery system provides high-current (>or approximately=130 kA) pulses to the plasma source with fast rise ( approximately 26 mu s). This allows for the production and acceleration of dense ( approximately 2*10¹⁵ cm^-3), high-quality (10-40 eV), self-field plasmas to approximately 10⁵ m s^-1. We are then afforded the laboratory study of plasma streams with a wide variety of applications including, but not limited to, advanced thrusters for electric propulsion, astrophysical jets, critical ionization velocity, magnetic fusion, large-scale plasma etching and deposition, etc. Comparison to an ideal MHD model is made indicating reasonably good agreement in these self-field discharges, while elucidating the advantages of strong applied magnetization to provide nozzling in a magnetically constricted flow.