single lead filter cap???

[paranoidandroid]

I can't find anything online of the sort so one of you genius's must know, I'm replacing the filter caps in an old EKO Herald III (tied to Vox in the 70's I believe). It has a standard 50 + 50 cap and then what appears to be a 32uF cap that only has one lead. The case of that cap was touching the ground plate so I can only assume that is the negative terminal? I've never seen anything like it before so I want to make sure I'm not about to blow this thing up if I wire it like I think I should. Thanks!

 

[12afael]

that was common on the tube era, a lot of caps use the chasis as ground.

 

[SSLtech]

They were sometimes marked "Case -"meaning case is negative. There was usually a mounting screw of some type.

Keith

 

[paranoidandroid]

Thanks guys, you're lifesavers (literally!).