Attached is a schematic for a power supply for the Grado RA-1 amp. Does anyone have any comments or suggestions?

Generally when you have an AC input, you convert it to DC via a transformer, diode, and large capacitor. The diode is in series with the transformer and the capacitor in parallel. How big of a capacitor you need depends on how much current your load pulls. There will still be some ripple from...

Well, the primary reason you can't just put a large capacitor on there is that large capacitors (electrolytics in particular) generally have poor high-frequency response. So you'd have to go with ceramics or whatnot, which have small capacitance. There are two primary concerns in building a...