Octave "The Cat" -1977    Weight= Lbs. Number mfg.= ? MRP=$799


User Manual: Octave Cat page
Reset Proceedures: N/A
Operating System code: N/A
MIDI or other control protocol: N/A
Software related Links: N/A
Patches or knob settings: I've taken digital photos, but Octave cat page has a template.
Circuit Overview: below
Scematics/Service Manual: Octave Cat page SRM+ or Synthfool's SRM1
Common Service Issues/Tips: below
Parts Sources: Keys knobs semiconductors misc
Uncommon chips/modules used:SSM2040 VCF in earlier SRM, SSM2044 VCF + CEM3340 VCO's in later ones. CA3046 transistor arrays used in VCO also as I recall on early ones.
Modifications:Octave cat page
General Info Links: Vintage Synth or Octave Cat page THanks John!

Circuit Overview:
     Classic analog with cross modulation and flexible routings. And...a non-linear taper pot that goes 1 full step the first half of the movement up or down and the rest of the octave in the next half! Reeeow! Very discrete circuitry for '77

Service Tips:
     Tuning tips for Sound Doctorin'