Does physical size of capacitors make a difference?

[rh2music]

When replacing caps, does the physical size make a difference? As long as the cap rating and voltage rating are the same? I purchased a large assortment of Mylar Polyester Film Capacitors from justradios.com last summer. they are rated at 630volts. They are going to replace caps in a 50's or 60's tube pa amp or organ amp.

What is the difference between these and say the Sprague orange gumdrops?

Thanks for your advice... Yellow_Light_Colorz_PDT_07

[SteveH]

The size makes no difference. The main reason for size differences for the same value is the physical construction (paper in oil, etc).

[erichayes]

Hi All,

Orange Drops use discrete polyester film and metal foil, which makes them a little larger physically than an equivalent metallized film cap. However, an Orange Drop wannabe that's the same size as the real thing is not necessarily F'n'F. A guitar player might be able to hear the difference, but in a PA amp . . .