A 2 vco analog subtractive synth similar to Odyssey and Axxe in many ways. External in to ring mod VCO1 is the main unique feature I think. Fairly rare synth.
Always those tantalum capacitors that can short/drift. Here is an email describing the location of the trimmers:
Keyboard section left to right Pitch-bend cal Keyboard cal Transpose Cal VCO2 Section Top to Bottom VCO1 V/Oct VCO1 Cal VCO1 PW LFO Section Top to Bottom VCO2 V/Oct VCO2 Cal VCO2 PW VCA Section Left to right VCF V/Oct VCF Cal I labeled both the remaining two adjustments "VCF CVR" but without checking the schematic again I can't remember what that meant! (There are actually two controls here; one is vCF and one is VCA 'cvr' ) Hope this helps. dj
Lots of discrete parts in these. Always feel free to ask or check my Parts
Contact Sound Doctorin'