[Raleigh]

I think the 40-190 has a couple of can electrolytic capacitors mounted on the top of the chassis. They are almost certainly bad, but can be cut open and modern electrolytic capacitors mounted inside them (called restuffing.) This preserves both the appearance of the radio and the original under-chassis wiring. Some restorers like doing this, but others don't and just mount the replacement electrolytic capacitors in some convenient place under the chassis. You might need to add a terminal strip underneath.

The antiqueradio.org web site recommended by Klondike98 has a page on restuffing electrolytic capacitors if you should have any interest in it.

By the way, if you don't restuff the two topside capacitors, you should not connect the positive side of the old capacitors to anything at all. The negative side of the old capacitors can be used to make mounting of the new ones easier, but be aware that one of them is grounded to the chassis and one is separated from the chassis with a fiber washer.