Help! Aphex Aural Exciter Harmonic Generator Circuit is Confusing

Type III schematics: https://static1.squarespace.com/stati... Type II schematics: https://gyraf.dk/schematics/Aphex_Exi... Support this channel via a special purpose donation to the Georgia Tech Foundation (GTF210000920), earmarked for my work:    • Support This Channel via a Special Gift to...   0:00 Introduction 0:24 Type III 2:40 Type II 4:45 Mystery chip: MAX1502