Electro-Harmonix MEMORY TOY Analog Echo/ChorusIntended for use with electric guitars, electric keyboards, or any instrument with a Hi Z output, the Memory Toy Pedal from Electro Harmonix is a stompbox designed to provide 30 to 550 ms of analog delay. Its feedback knob allows you to increase the number of repeats, a high instantiation of which will cause the signal to self oscillate in ways suitable for experimentation; indeed, at high settings, you can even achieve a reverb type effect. For