TECH:stupid capacitor question

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uf and mdf are the same

the - on the cap shows the negative lead of the cap,

if the pcb shows a + then dont put the negative of the cap in the + side...
pretty easy to figure out.

They are way smaller then they used to be.

you can substitute a 25v for a 16volt any time. I tend to oversize my caps
all the time.

John



"videorob" <videorob@surewest.net> wrote in message
news:1116723898.270812.51350@g49g2000cwa.googlegroups.com...
>I am replacing a few capacitors on a sound board and have a few stupid
> questions.
> 1. The manual states, for example, 100mdf @ 25v is to be used.
> The board actually has 100uf @ 16v in place.They look original, but not
> sure.
> I believe the mdf is for microfared. the uf is for ??
> are they the same? The caps I bought are all uf.
> 2. Several of the caps i picked up have an arrow with a - sign on
> it(axial). The caps on the board have a + on the arrow. Do
> I have the wrong caps, or do I line up the arrow the same, or put the
> cap in opposite of the direction it was on the board?
> 3. A large cap 2200 mdf @25v is quite a bit smaller than the cap on the
> board. Are they just smaller now then they were 25 years ago?
>
> This is my first attempt at cap replacement, so these question should
> help me out.
>
> Thanks, Rob.
>