Big caps v Little caps


I'm not an EE guy, so its ok to talk down to me. I'm just curious. I've noticed 'older' amps (Robertson Audio Forty-Ten) and certain brands (eg Hafler) and 'unusual" brands (Pathos) use just a couple of giant capacitors, while most of the mainstream equipment I see, seem to use lots of smaller caps.
I bet someone can explain this to satisfy my curiosity?
lester_ears

Showing 1 response by timboinoz

IME it depends, EG.

if we are retrofitting a clasic tube amp, we may have to go for only as many good filter caps in the original spot,s unless there is a lot of room elsewhere, but wa can often raise the value uf wise while staying near the original dimensions, if the rectifier/s are up to it, (rectifier tubes generally aren't), and if we have a choke, or can fit one in.

you CAN get most of the ESR benefits of paralleling up small caps, with some modern large electros at least, AND their is always bypassing.

All the filter caps in my 2 modded baby Leak St20's, are bypassed with ladders of MF polyprop and polystyrene caps.

Tim B