above photo courtesy of Erik G

Designed by Erik G between 1990 and 1993, his EH-30 analog modular is housed in two custom built aluminum cabinets each approximately 2' x 1.5' x.5'. Erik writes, "The modules containing CEM chips are basically PAiA design, with my mods. The others are my own designs, with some help from the Barry Klein book Electronic Music Circuits."

• (4) VCO: VC PW: (CEM 3340)
• (2) VCO: VC PW: (XR2206)
• (2) VCF: 4 pole LP/BP, VC-Reso: (CEM3320)
• (2) VCF: 2 pole LP/BP/HP multimode: (BB UAF42+OTA)
• (4) VCA: (CEM3330)
• (2) VC ADSR: pos/neg out: (CEM3310)
• (2) AR: AR or AD: (OP+logic)
• (2) VC MG: (mod. gen.) multi waveform: (XR2206)
• (2) MG: PW: (OP)
• (2) SFG: (smooth function generator)
• AR/Smooth/LFO: (OP+logic)
• (1) EF: (envelope follower): (OP)
• (1) Joystick
• (2) ANSW: (analog switch): (DG201)
• (1) VC Phaser: (Ex Roland pedal)
• (1) VC WMP: (wave multiplier): (Discrete+OTA)
• (1) RM: (ring modulator): (ICL8013)
• (1) NG: (noise generator) red/white/pink: (zener)
• (1) S/H: clock/trig, LFO: (OP+FET)
• (2) Diff amp: (OP)
• (1) 3-input adder/mixer: (OP)
• (2) 6-input mixer: (OP)
• (10) 3-jack multiples

(The keyboard in the photo is a Roland SH-1000)