In article , Brian Gaff
wrote:


Now I know its easy to convince oneself that you can hear something,
but this morning on turning it on, I think I heard the hum reduce a lot
slower than it used to do.

What "hum" do you mean?

So, I'm thinking, a capacitor which is slightly leaky might still be in
the circuit.

If any reservoir caps are leaking dc to a sigificant extent they'd
certainly need replacing. But if they leaked enough to cause hum I'd hope
they'd quickly blow a fuse! Otherwise you may have a safety problem. And
large electrolytics won't really be capacitors at RF, say, above a few MHz.


No other work was done other than fit a new bridge, so I'm
thinking, it might be wise to get the guy to change out the caps as
well, or measure what the supply drain is off load.

You should perhaps also ask "the guy" if he changed/removed any small RF
caps across the original bridge. Also find out *why* the old bridge failed.

Slainte,

Jim

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