No info about availability.
Ringmodulator with an internal oscillator
Erica Pico Ring is a balanced modulator (quadrant multiplier) circuit to create bell-like, metallic or robotic sounds. It has built-in triangle wave modulation oscillator for more versatility.
FEATURES:
Full analogue circuit
Built-in triangle wave oscillator
Input level attenuators
Input and output protection against overvoltage
Protection against reverse PSU connection
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These merchants probably sell this module. Huh?