A high-intensity, high-resolution neutron velocity selector system, employing the Nevis synchrocyclotron as asource of pulsed neutrons, is described. Detector counts are accumulated in a 2000-channel analyzer with 0.1-&mgr;secchannel width. Punch card data reduction techniques are discussed. Resonance spectra ofPbI2obtained using a35-m flight path provide an example of the resolution and illustrate the use of the self-indication capture &ggr;-raydetector scheme extensively employed. A planned flight path of 200 m is expected to provide a resolution of <1nsec/m for neutron energies above 1000 ev.