4 Sep
2016
4 Sep
'16
4:28 p.m.
On 03/09/2016 23:27, "John Robertson" <jrr at flippers.com> wrote:
You do have to consider where in the circuit the capacitor is. If this
is a switching power supply (as I suspect) then if the cap is after the
switching transformer it MUST be a low ESR, high temp cap - otherwise it
won't last very long. If this is on the primary side and is simply
filtering the input rectified AC then ESR is not as big a problem, but
you need a good physical size if the switching supply puts out a fair
bit of current due to heating effects of low frequency ripple.
So, it all depends.
For general repair I would get the best grade of capacitor - say
Panasonic - with a nice low ESR and away you go.
Panasonic and Multicomp as it happens, identical capacitance and similar
size but higher voltage rating. The mentioned heating effects worried me so
I went big.
Cheers,
--
Adrian/Witchy
Binary Dinosaurs creator/curator
Www.binarydinosaurs.co.uk - the UK's biggest private home computer
collection?
Similar size - then no problem! But, some new cap
types are
VASTLY smaller than the caps from 40 years ago.
Hence my question, I'll stick
with the same size but higher voltage.
Cheers!