sound effects with analog reverb

We have recently published a number of articles featuring delay lines and the most popular was the Analogue Reverb Unit in Elektor 42 (October 1978). It would appear that this article was greeted with such enthusiasm by our readers that many have been encouraged to experiment further. The following project has been designed as a `front end` to the reverb unit with the purpose of allowing greater flexibility with reverb effects. It produces a variable rate clock signal together with five different modulation waveforms that can be used for phasing, vibrato and other effects. A random signal generator is also included for chorus effects. The composite output signal is intended to be connected to the external clock input of the analogue reverb unit.