The early Marauder (schematic above) had a three way pickup switch, allowing selection of front, rear or both pickups. Both volume and tone pots had a resistance of 300K.
In 1976/77 the switch was changed to a linear taper potentiometer (early versions use part 70036, later 70009), allowing the user to blend the two pickups to any degree. The potentiometers listed for the Marauder are summarised here; volume pot is part 70031, tone 70033.
Taken from the 1981 parts list, though correct for all non-switch pickup selector models (see exception)
1 - incorrectly stated as a volume pot, actually tone.
2 - the 1977 parts list suggests part 70036 (smaller resistance - 50K)
$2500
$1800
$395
$1175
$40
$30
$139
$349
$1695
$125
$139
$65
$129
$85
$40
$1499
$1500
$100
$200
$80