Hi Gabriel, the brand isn't important, it's the ripple current rating that is more so. Also you will find it easier to use more common capacitance values - while you can still get 8 + 16uF that the PW461 requires, more cost effective alternatives are to use a 10uF in lieu of 8uF and 22uF in lieu of 16uF. The high ripple cap is the one connected to the rectifier cathode, in this case 8uF. This one is quoted with a ripple current of 125mA at 120Hz which is OK
https://uk.rs-online.com/web/p/alumi...itors/7567636/ . You will see others with higher ripple current ratings but the devil is in the detail as always since some of these are ripple currents quoted as high as 300mA at 100kHz. To get the actual value at (for UK mains with full wave rectification) 100Hz that figure has to be multiplied by a factor given in the datasheet of 0.3, so it's still pretty good but not as high as you might have thought! It is getting more difficult to find suitable capacitors with axial leads but I don't have a problem using the ones with radial leads. Some people like to scrape out the gunk from inside the large old electrolytic can and re-stuff with new capacitors and the radial lead types are handy for this. Personally I tend to wire them in below chassis where nobody is going to see them! Hope that helps