TY - RPRT TI - 15/16 ips Operation of the Precision Instrument Company Model P15100 tape recorder to record the standard (30 Hz) NCER seismic data multiplex system AU - Jerry P. Eaton PY - 1976 DO - 10.3133/ofr76252 UR - https://pubs.usgs.gov/publication/ofr76252 ID - ofr76252 ER -