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AY-1-0212 - Top Octave Generators
MK50240 - Top-Octave Frequency Generator
MK50242 - Top-Octave Frequency Generator
MK50241 - Top-Octave Frequency Generator
MK50242N - Top-Octave Frequency Generator
MK50242P - Top-Octave Frequency Generator
AY-1-0212A - Top Octave Generators
