In the present paper we report experimental observations of discrete spatiotemporal structures in rings of unidirectionally coupled analog Lorenz systems. This is an extension of the results previously reported in [Sánchez & Matías, 1998], studying now other parameter regimes. These studies are based on the use of an analog circuit corresponding to Lorenz equations. The more interesting new result is that a route has been found connecting periodic and chaotic rotating waves in a new kind of transition involving two symmetry related quasiperiodic attractors that merge at the transition point.