Vintage Guitar - March 2017 - Open - 87
using lemon oil mixed with a small amount
of Danish oil. This replenished the moisture
in the beautiful Brazilian rosewood and will
help it repel water. After letting is sit for
about 20 minutes, I wiped the excess with
a clean towel.
4) The bass' output was intermittent,
which the owner believed to be caused by the
three-way selector. The old switch definitely
had been rewired and needed replacing. This
was a prime opportunity to up the game of
5) Instead of replacing the switch with
another three-way, I installed a 500k blender
pot. Basically two pots in one, it is two separate
volume controls with one central shaft. The
trick is to wire the pots so when one pickup's
volume is being turned up, the other's is being
6) Because the two stacked potentiometers
are wired opposite, the first step is to crossconnect the two output terminals. I used a
wire shield to prevent shorts or grounds.
The upper-left connection here will be
where the main output connects to the rest
of the circuit.
7) To maintain ground and ensure the
volume tapers are opposite one another, I
cross-connected the other two outer terminals. If wired on the same side, both pickups
would turn up and down simultaneously
rather than blend.
8) I connected the two pickup leads to the
middle terminals. The upper wire is from the
bridge pickup, the lower wire from the neck
pickup. This arrangement allows for the blend