Interesting that Nick at True Sound advised you to sell them. I was in his store / shop about 6 years ago, and he had some Quad 63 ESLs on his bench that he was repairing. Perhaps he is not messing with Quads anymore.
Try user 'Kentaja' from Electrostatic Solutions. He is out of Kansas (so shipping would be expensive), but he may be your guy. You may just be out of luck when it comes to a California Quad tech.
Try user 'Kentaja' from Electrostatic Solutions. He is out of Kansas (so shipping would be expensive), but he may be your guy. You may just be out of luck when it comes to a California Quad tech.