Those are the massive ones sittng horizontally on the
PCB, right?
That is correct.
there's a smaller can-type electrolytic on the
output side.
Yes on the 7441 there are two small axial style electrolytic that stand
vertically on the PCB. These are small and cheap enough here to just
replace so I think I will do that.
re suppliers
Yes we have RS Components here in NZ and they have a good range of parts
and generally the pricing is fairly reasonable. No freight charges on
internet orders even if they bring the stuff in from the US or UK.
Sometimes I wonder how they make money when I receive individually bagged
microcontrollers for a few $ each shipped from the US. Must be some margin
in there somewhere.
I did find
http://newzealand.rs-online.com/web/p/aluminium/2508858302/?searchTerm=2508…
which
meets the specs but is very expensive down here.
Based on your suggestion that 22000uf 50V would likely be OK I wonder if
the following part might be an alternative:
http://newzealand.rs-online.com/web/p/miscellaneous/2550081355/?searchTerm=…
Considerably cheaper down here.
Regards
Andrew