Both basses were recorded with the volume and tone up all the way. I don't know what the capacitor values are, both both have their original electronics. Attached is a picture of the '72 if that's helpful. Both basses were strung with La Bella 760FL flatwounds that were 2.5 years old at the time.
- Steve
It must be the strings, then, as tone up takes capacitor and pot values out of the equation and two alnico pickups should sound pretty similar if they are much the same the DC value, as are many modern pickups.