Announcement

Collapse
No announcement yet.

1958 Vintage Radio Cap Replacement

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

    1958 Vintage Radio Cap Replacement

    I need to replace a 70uf+50uf 150v 75 C temp radial capacitor out of an 1958 Admiral 278-5D4.

    I am having a hard time finding that exact spec, does any one know what a good replacement would be from a modern manufacturer?

    This is my first restoration, so be gentle.

    Thanks in advance!
    Attached Files
    Last edited by GreenKnight15; 01-16-2023, 07:11 PM.

    #2
    Re: 1958 Vintage Radio Cap Replacement

    You just need to find two single electrolytic capacitors, no need for low esr etc.
    33µf/160v
    47,56 or 68µf/160v
    values are not that critical

    You may be able to install them inside the old electrolytics paper cover (just for looks)
    Last edited by R_J; 01-16-2023, 07:29 PM.

    Comment


      #3
      Re: 1958 Vintage Radio Cap Replacement

      lots of people gut the old one and put new ones inside .. failing that its disconnect the old one and put new ones underneath .

      Comment


        #4
        Re: 1958 Vintage Radio Cap Replacement

        Originally posted by R_J View Post
        You just need to find two single electrolytic capacitors, no need for low esr etc.
        33µf/160v
        47,56 or 68µf/160v
        values are not that critical

        You may be able to install them inside the old electrolytics paper cover (just for looks)

        This makes sense! I wasn't sure if there was any special use case for the 3 lead instead of 2 separate caps in the original design so I was looking for a exact match.

        I can easily find a 50uf and 70uf 150v cap and split them between the 3 leads. Thanks!

        Also I love the idea of placing them inside the old paper!

        Comment


          #5
          Re: 1958 Vintage Radio Cap Replacement

          I had to do this with an old radio someone gave me that for some reason I decided to repair....

          Yes, the clock worked....I think that's why I fixed it....



          Anyway, the culprit....



          Scavenged 2 caps from some old PSU's. I normally frown on that....but this was not for a customer or anything that required any degree of precision....so...yeah... I did check them on my Sencore, they were good.

          I did not do the 'install the new caps in the old cap body' thing....looks / authenticity wasn't the goal.





          I just used existing holes in the PCB and a few workaround jumpers to attach.



          I also cleaned out the vol & tone pots and a little teflon gun oil in the clock movement. Keeps perfect time and sounds as good as an old AM tube radio could. Not sure why I botehred with this one, maybe it was the pink body; Emerson 'Lifetimer' from 1963.
          Attached Files
          <--- Badcaps.net Founder

          Badcaps.net Services:

          Motherboard Repair Services

          ----------------------------------------------
          Badcaps.net Forum Members Folding Team
          http://folding.stanford.edu/
          Team : 49813
          Join in!!
          Team Stats

          Comment


            #6
            Re: 1958 Vintage Radio Cap Replacement

            This is awesome! Seeing a complete example is most helpful, give me some ideas how how I want to attach the new caps.
            Thanks!

            Comment

            Working...
            X