Demo of Echo Function of PT2399 Mic Preamplifier and Echo Board

There are three controls on the standard interface for most PT2399 echo and reverb modules. Just a demo of the interesting echo function of the pre-amplifier board which I bought and wired.

MIC VOLInput StrengthLouder voice, potential for distortion.
REVERBDelay GapSlower, longer intervals between echoes.
REPEcho CountMore repeats; eventually leads to infinite feedback.