I'm working on a Westinghouse model H-104A radio. The e-caps are in a can and it lists four of them on the can but there is no common neg. listed and I don't see one that goes into the can. What do I use for the neg to the new e-caps that I put in? Should I just create one from a chassis post? I haven't run into this before. Is this common on the old transformer radios? Thanks Dan.

:I'm working on a Westinghouse model H-104A radio. The e-caps are in a can and it lists four of them on the can but there is no common neg. listed and I don't see one that goes into the can. What do I use for the neg to the new e-caps that I put in? Should I just create one from a chassis post? I haven't run into this before. Is this common on the old transformer radios? Thanks Dan.

::I'm working on a Westinghouse model H-104A radio. The e-caps are in a can and it lists four of them on the can but there is no common neg. listed and I don't see one that goes into the can. What do I use for the neg to the new e-caps that I put in? Should I just create one from a chassis post? I haven't run into this before. Is this common on the old transformer radios? Thanks Dan.

Dan
Looking at the schematic, it appears that the negative is grounded to the chassis. Does the original can capacitor have an insulator of some type that insulates it from the chassis? If it does not then the cap is more than likely negatively grounded to the chassis
Jon.

In other words, the metal can forms the negative terminal.

Thomas

: Looking at the schematic, it appears that the negative is grounded to the chassis. Does the original can capacitor have an insulator of some type that insulates it from the chassis? If it does not then the cap is more than likely negatively grounded to the chassis
:Jon.