I read on a resource website that I can change all my paper/wax capacitors to film capacitors of a higher volt rating.. Did I understand that right? And can I find the one with the highest VDC and switch them all out to film capacitors of a equal VDC or higher? I think I am finally beginning to understand this. I’ve got a learning disability so it takes me longer to understand stuff (especially when written and on here. I’m more of a visual learner so, please be patient with me guys.
I’ll probably be asking some more questions
Adam
Adam, I am also one that learns by doing.
You can use 630 volt film capacitors to replace all the paper capacitors in your radio. There may be an exception on some radios such as a cap connected to the primary of the output transformer. You can use the “orange dip “ type or the yellow tubular ones, it doesn’t make any difference at all. There are several dealers selling capacitors, including a couple of members of the Phorum
Steve
Thank you Steve! That makes it a lot easier to restore this thing, hopefully I can get this playing again soon. A few of the paper capacitors look blown to me anyway but, I’ve read not to bother with them regardless and just replace them. The speaker maybe bad too but, I won’t know that until I’ve recapped everything
Steve, do I need to get them all in the different Ufs that the schematic calls for or can I just use the highest one it calls for to cover all the ranges?
Adam, you should get the film capacitors with capacitance (uF) values close to the values that are in the radio or on the schematic. Modern capacitors do not come in some of the odd values that used to be used but you can usually get something close. Close is usually good enough.
Yes, an example .05 is no longer a standard value, in this case you would use .047 or if your radio has a .02 you would use a .022. As Bob said close will be good enough.
Steve
Thanks for the help guys!
Steve, my schematic saids one is .01uf.. Would I use a .22uf in that case too? I’m assuming I would
No, use a new .01 uF.
This might help:
If the schematic reads - Use
.001 uF - .001 uF
.002 uF - .0022 uF
.003 uF - .0033 uF
.005 uF - .0047 uF
.01 uF - .01 uF
.02 uF - .022 uF
.025 uF - .022 uF
.03 uF - .033 uF
.05 uF - .047 uF
0.1 uF - 0.1 uF
0.2 uF - 0.22 uF
0.25 uF - 0.22 uF
0.3 uF - 0.33 uF
0.5 uF - 0.47 uF