  We investigate the relation between the dynamics of a single oscillator with
delayed self-feedback and a feed-forward ring of such oscillators, where each
unit is coupled to its next neighbor in the same way as in the self-feedback
case. We show that periodic solutions of the delayed oscillator give rise to
families of rotating waves with different wave numbers in the corresponding
ring. In particular, if for the single oscillator the periodic solution is
resonant to the delay, it can be embedded into a ring with instantaneous
couplings. We discover several cases where stability of periodic solution for
the single unit can be related to the stability of the corresponding rotating
wave in the ring. As a specific example we demonstrate how the complex
bifurcation scenario of simultaneously emerging multi-jittering solutions can
be transferred from a single oscillator with delayed pulse feedback to
multi-jittering rotating waves in a sufficiently large ring of oscillators with
instantaneous pulse coupling. Finally, we present an experimental realization
of this dynamical phenomenon in a system of coupled electronic circuits of
FitzHugh-Nagumo type.
