As is common on Guilds, the capacitors are nothing special and are just off-the-shelf ceramic discs labeled 203 which means they have a value of .02 μF.

This guitar has decoupled wiring which means that with the pickup selector switch in the middle position (both pickups on), rolling one of the pickup volume knobs down to zero will not mute the guitar. On a guitar with coupled wiring, the guitar will go silent if either pickup is dialed down to zero while in the middle position.
I’m not a middle-position lover because the guitars I used when younger were all coupled and I found the middle position to be mostly stupid as a result. With decoupled wiring the tonal options are far better to my ears.