[regel_1999]

I broke down, went to the antique store and bought this old radio. It's got a lot of work to be done to the wood box, but the chasis is clean, the wires aren't falling apart, the heaters on the tubes passed a resistance check, and I think this will be a good little radio. It helps I have two different schematics of it too.

Before I get started, there was one question I had. Some of the foil caps have been replaced. They've been replaced by caps that look about the same size and shape of the original paper cap, but the outside is red or blue plastic. I've never seen these before and wondering if I needed to replace those as well.
Also, not all the caps have been replaced, only four.

Any suggestions or history on these plastic caps? If no one responds I'll just replace them too.

Thanks!
-Brandon