This table provides connector sizes and voltage ranges for some popular synthesizers. This is by no means a complete list, so feel free to contact me with additions or corrections

Manufacturer:	Models:	Audio:	Control Voltages:
Aries		1/8" (3.5mm) 10v p-p	1/8" (3.5mm)  0-10v
Arp		1/8" (3.5mm) 10v p-p	1/8" (3.5mm)  0-10v
Blacet		1/8" (3.5mm) 10v p-p	1/8" (3.5mm)  0-10v
Boehm		Banana (4mm)	Banana (4mm)
Buchla	100/200 series	1/8" (3.5mm)  1v p-p	Banana  0-15v
Delta Music Research		Banana (4mm)	Banana (4mm)
Digisound		1/8" (3.5mm) 5v p-p	1/8" (3.5mm)  0-5v
Doepfer	A100	1/8" (3.5mm)	1/8" (3.5mm)
Elektor	Formant	1/8" (3.5mm)	1/8" (3.5mm)
EML		1/4"	1/4"
EMS		2mm	2mm
EMU		1/4"	1/4"
EVOS		1/4"	1/4"
Fenix		Banana (4mm)	Banana (4mm)
Korg	MS / PS Series	1/4"	1/4"
MacDonald		10v p-p	0-5v
Midwest Analog Products	ADV-Bass	10v p-p	0-10v
Modcan		Banana (4mm)	Banana (4mm)
Modulus		10v p-p	0-10v
Moog	900 Series	1/4"     1v p-p	CV: 1/4"
			S-Trig: Cinch-Jones
PAIA	2700 Series	1/8" (3.5mm) 1v p-p	Pin Plug  0-5v
	4700 Series	1/8" (3.5mm) 1v p-p	Pin Plug  0-5v
	9700 Series	1/8" (3.5mm)	1/8" (3.5mm)  0-10v
Polyfusion		1/4"	1/4"
Roland	100 / 100M		1/8" (3.5mm)  0-10v
	700	1/4"	1/8" (3.5mm)  0-10v
	SH-101	1/4"	1/8" (3.5mm)
RS	Integrator	1/8" (3.5mm)	1/8" (3.5mm)
RSF	Kobol Expander	1/4"	1/4"
Serge		Banana (4mm) 5v p-p	Banana (4mm) 0-5v
Synthesis Technology	MOTM	1/4"	1/4"
Synton		Banana (4mm)	Banana (4mm)
Technosaurus		1/8" (3.5mm)	1/8" (3.5mm)
Wiard		1/8" (3.5mm) 10v p-p	1/8" (3.5mm)  0-10v