This is a long one so get a beer.
I picked up a 513 recently for a great price. I was confused with the guitar when I bought it with a switch mounted between the volume and tone knobs.

The guitar appeared to have been fitted with Graphtec saddles too. No biggy the originals were in the case.
So home I trotted with the guitar pleased with my new purchase.
The switch was bugging me. What did it do? I couldn't hear anything when moving it....hmmmm!!!!
So, investigation mode ensued.
It transpires that the guitar was fitted with a Graphtec Ghost piezo system. The tone control swapped out for a volume control to work along with the piezo.
Cool...a 513P22...I liked the idea and all I was missing was a 2 way stereo cable to activate the piezo.......NOPE!!!!
The previous owner had bought the guitar through eBay and immediately stripped out the piezo system cutting the wires right back to the saddles.
The original tone pot was reinstalled and I now have a 513 with a dead mini toggle switch attached to, well, nothing,and a ruined piezo system
The guitar was taken back to the store who in all fairness didn't realise that the guitar had been modded. I was offered a further ( large discount ) on the guitar. I accepted the offer and once more trotted home with the guitar.
So...yesterday I was at band practice with the guitar and noticed that the volume control doesn't kill the guitar on a gain channel. The volume bleeds through and the strings can be heard.
I have also noticed that if I roll off the volume to try and clean the guitar up, once more on a gain channel, the guitar sounds like it is through a wah pedal.
So...if anyone is still reading and with me, what's wired up incorrectly?
I picked up a 513 recently for a great price. I was confused with the guitar when I bought it with a switch mounted between the volume and tone knobs.

The guitar appeared to have been fitted with Graphtec saddles too. No biggy the originals were in the case.
So home I trotted with the guitar pleased with my new purchase.
The switch was bugging me. What did it do? I couldn't hear anything when moving it....hmmmm!!!!
So, investigation mode ensued.
It transpires that the guitar was fitted with a Graphtec Ghost piezo system. The tone control swapped out for a volume control to work along with the piezo.
Cool...a 513P22...I liked the idea and all I was missing was a 2 way stereo cable to activate the piezo.......NOPE!!!!
The previous owner had bought the guitar through eBay and immediately stripped out the piezo system cutting the wires right back to the saddles.
The original tone pot was reinstalled and I now have a 513 with a dead mini toggle switch attached to, well, nothing,and a ruined piezo system
The guitar was taken back to the store who in all fairness didn't realise that the guitar had been modded. I was offered a further ( large discount ) on the guitar. I accepted the offer and once more trotted home with the guitar.
So...yesterday I was at band practice with the guitar and noticed that the volume control doesn't kill the guitar on a gain channel. The volume bleeds through and the strings can be heard.
I have also noticed that if I roll off the volume to try and clean the guitar up, once more on a gain channel, the guitar sounds like it is through a wah pedal.
So...if anyone is still reading and with me, what's wired up incorrectly?