Old radio caps, identify please?

[Kinetic99]

Hello, and thanks for your time,
I am wondering what kind of caps these are in an old 1950's radio (wax, mica, ceramic, ?)
Can someone please identify the types?

Would they need to be replaced?

[japlytic]

Re: Old radio caps, identify please?

They could be polyester units, but they may be of the unreliable paper type.

[selldoor]

Re: Old radio caps, identify please?

I would be inclined to ask on here
http://antiqueradios.com/
They have forums

[PeteS in CA]

Re: Old radio caps, identify please?

The ones where I could see a logo were made by Iskra, a Yugoslav company. I'm going to guess the first three pix are polypropylene, and I think the fourth pic is a ceramic.

[goontron]

Re: Old radio caps, identify please?

the red one is a paper unit, the green one is polly, the third one i haven't seen before (maybe a clone of a bumble bee?) more than likely a mica, and the fourth you probably dont need to replace.

[ben7]

Re: Old radio caps, identify please?

Also, replace the larger electrolytic capacitors (the big metal can one(s)), they tend to fail at this old age.

[selldoor]

Re: Old radio caps, identify please?

I think I got the wrong site in my earlier post - meant this one - .org not .com
http://antiqueradio.org/recap.htm#types

[goontron]

Re: Old radio caps, identify please?

fixed an error
the red one and the third one is paper, the green one i haven't seen before. more than likely paper, and the fourth you probably dont need to replace