Need help identifying this component.

Thread Starter

Zombified

Joined Jul 8, 2019
11
Am unable to identify this component. It looks to be wax and paper and the markings are 22.15 ,that is all. There are also identical ones marked 22.13 . I could really use the help identifying them and also what the numbers mean. Thank you for any help available.
 

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SamR

Joined Mar 19, 2019
5,491
Wrong color for an old cap. Thermistor used for hi inrush. Some as a "resettable" fuse. The marking and color more like thermistor than a cap. first thought was KV rated cap.
 

Thread Starter

Zombified

Joined Jul 8, 2019
11
I have been able to find a service manual for the radio so I am hoping that will help, I am going to see if I can find any information on a thermistor of this type somewhere. I have never had such a hard time figuring out a component before. I wish to thank everyone that took the time to give me feedback. I will try to post when I find out what it ends up being. Thanks again everyone.
 

JohnInTX

Joined Jun 26, 2012
4,787
With the bigger picture they like several ceramic discs to me, too, dipped in wax, a common coating in those days. Thermistors of that vintage that I remember were little pucks, sometimes in glass, sometimes open but not coated.
 
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shteii01

Joined Feb 19, 2010
4,644
SamR might be right. I looked up how ceramic disk caps are marked and what OP has does not match "standard" way to mark capacitor. Hopefully service manual will have something.
 

SamR

Joined Mar 19, 2019
5,491
Several obvious (from the color) albeit large diameters caps are visible. Then there are 3? dark colored ones. What are the markings on the other dark ones? For some reason thermistors have a little "pip" on the top of them that caps do not have.
 

Thread Starter

Zombified

Joined Jul 8, 2019
11
All the components that look like this are either marked 22.15 or 22.13 , I have never come across a cap with this type of marking but I have also learned that when it comes to components there are no tried and true ways to mark them. Again, thanks to everyone that has taken the time to help me. I will let you all know if I solve my mystery.
 
You could take one out, measure impedance to see what you get. If you get a reasonable ohm value (usually low impedance), it's a thermistor. If you measure high impedance it's likely a capacitor.
 
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