We briefly review the Galactic microquasar SS 433/W50 and present a new RXTE
spectral and timing study. We show that the X-ray flux decreases during radio
flares, a behavior seen in other microquasars. We also find short time-scale
variability unveiling emission regions from within the binary system.Comment: 4 pages, 3 figures, mq.sty included. A higher resolution version can
be found at http://aurora.physics.umanitoba.ca/~samar/4MQ/ss433/. Proceedings
of the 4th Microquasar Workshop, eds. Ph. Durouchoux, Y. Fuchs and J.
Rodriguez, published by the Center for Space Physics: Kolkata (in press
