Model 60B capacitors 2024 & 2025 - Printable Version
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Model 60B capacitors 2024 & 2025 - FixAcft - 05-21-2020
Ok,
Here is my first post about my first restoration, you folks have answered a ton of foolish questions, SO... one more won't hurt.
I have bought a model 60B, 1934, if my research is correct, not bad for a $5 yard sale item. I have researched some schematics and have a basic understanding of the components.
1) i have questions about the capacitors, from my research the 30-2024 is a 8 mfd, 450 volts, and the suggestion is to use a 10mfd, 450 volt as a replacement.
2) the second capacitor is a 30-2025, and the values i have found so far is has the same values as the 2024. Why the difference in part numbers? Also this 2025 cap had two wire soldered to the terminal in the center, where the 2024 only had one wired soldered the the center terminal.
3) the capacitors had a cardboard sleeve around them, it looks like that would insulate them from the bracket that held the capacitors in place to the chassis. With only one terminal on each cap, both in the center, where would the ground or other wire be?
What do you think? Am i seeing the right?
RE: Model 60B capacitors 2024 & 2025 - Radioroslyn - 05-21-2020
Hi and welcome,
>1) i have questions about the capacitors, from my research the 30-2024 is a 8 mfd, 450 volts, and the suggestion is to use a 10mfd, 450 volt as a replacement.
Yup your fine!
>Why the difference in part numbers?
Don't know and dead men tell no tales... You may look in any of the service updates and parts catalogs in the library. Philco make a billion model 60 sets.
>the capacitors had a cardboard sleeve around them, it looks like that would insulate them from the bracket that held the capacitors in place to the chassis. With only one terminal on each cap, both in the center
Yup you'll need them so don't muck them up unless you want to make new ones.
>where would the ground or other wire be?
Originally there was a metal tab that was fitted between the cardboard tube and the aluminum outer cover of the capacitor. If you look closely you may see an indent where the tab was fitted in the cardboard. The two tabs are connected together (the minus side of the filter cap) and connect back to the center tap of the power transformer. The metal outside of these two cap are NOT connected to the chassis as you mentioned.
GL
RE: Model 60B capacitors 2024 & 2025 - Radioroslyn - 05-22-2020
You might find this to be helpful: https://www.philcorepairbench.com/rebuilding-aluminum-can-electrolytics/
If you get the page that has a little square that sez close just click on it and it will open the repairbench page.
RE: Model 60B capacitors 2024 & 2025 - FixAcft - 05-22-2020
Yes i think i will try to recan or restuff the Caps. I need to study the schematics a little more. I still want to see where the outside of the can connects. BUT its fun working on it so far
RE: Model 60B capacitors 2024 & 2025 - klondike98 - 05-23-2020
There is a cap like yours that I stuffed in my 60MB. The pics might help you as well.
https://philcoradio.com/phorum/showthread.php?tid=11685&pid=85845#pid85845