Gibson

AT300:
Fits; Gibson Les Pauls
Function; volume
Value; 300k ohms

AT310:
Fits; Gibson SGs, ES-335s, etc.
Function; volume
Value; 300k ohms, linear taper

AT500:
Fits; Gibson Les Pauls
Function; tone (or volume, slightly increases output clarity)
Value; 500k ohms, audio taper

AT510:
Fits; Gibson SGs, ES-335s, etc.
Function; tone
Value; 500k ohms, audio taper

Push Pull:
Electrical value: 500k Ohms, audio taper. Ideal for coil tap selection with 4-wire Humbucking pickups.