[MissouriLarry]

I have only been tinkering around with learning tube radios for a year now.  I do have my first radio up and running but now I am working on another one.  I found what I believe is a bad mica capacitor. I am not a book smart kind of person, I learn by doing. The schematics are still very difficult for me to follow so I am having trouble figuring out what are the values.  On a webpage I found where one can enter the colors and it will tell you what the value is.  Mine has 4 dots that I can see but the only selections was 3, 4 or 6 dots.  I entered the 3 that are in a row and it came back as 50,000pF.  Can someone help me and maybe explain how to id this?  I have been purchasing my parts from Tony's but where can I get these and what do I need?