I’m waiting for Hans to enlighten us. Stacked pots were not standard then, were they? Are they push/pull?
From what I have read, that is factory wiring for the X-175 of that era. Mine is a 1960 and has never been apart. The interesting thing is that in the middle position, you have both neck and bridge volume and tone control. In other words, the bridge or neck volumes do not have to be on at all to get full control of volume and tone. I think I have stated that properly. FYI, these are original knobs and have the little piece of fabric wedged up inside them as described on GAD's blog. https://www.gad.net/Blog/2019/09/17/identifying-guild-clear-g-shield-knobs/ Another interesting thing is that there is a trace of spline inside each knob that I have. I wonder if the dual stacked pot thing was not available with a splined shaft back then but they used the splined knobs anyway. Note that both the volume and tone controls are solid shafts with no splines and no splits. As far as I can tell, Guild did not use set screw type knobs on these guitars.Aside from the knobs question, who here knows what's going on with that wiring/control setup? That looks inordinately complex and I'm too stupid to know what a stacked pot like that would do, especially since it seems to have a single shaft (not like a concentric knob Danelectro/Jazz Bass setup). Seems like quite a bit of wiring going on there. If factory, I'm thinking that's gotta be some sort of experiment or special order and, if not factory, it's super tidy work.
If you're saying that each pickup's controls are fully independent, such that you can completely roll one off in the middle postion, that's been true of all the Guilds I've owned. I agree that the wiring looks clean enough to be factory-done, but I really don't think that's standard for this (or any other era). It's interesting!From what I have read, that is factory wiring for the X-175 of that era. Mine is a 1960 and has never been apart. The interesting thing is that in the middle position, you have both neck and bridge volume and tone control. In other words, the bridge or neck volumes do not have to be on at all to get full control of volume and tone. I think I have stated that properly. FYI, these are original knobs and have the little piece of fabric wedged up inside them as described on GAD's blog. https://www.gad.net/Blog/2019/09/17/identifying-guild-clear-g-shield-knobs/ Another interesting thing is that there is a trace of spline inside each knob that I have. I wonder if the dual stacked pot thing was not available with a splined shaft back then but they used the splined knobs anyway. Note that both the volume and tone controls are solid shafts with no splines and no splits. As far as I can tell, Guild did not use set screw type knobs on these guitars.