Make sure your transformer is up to it - big caps can mean higher peak currents and more I^2xR in the windings. Steve > ## 600-1000uf caps cost very little these days..so why cheap out ? Caps are > cheap on the surplus market as well. > IMO, 1% ripple is the minimum that you should be aiming for in a HV supply. > That implies 600 uf caps vs 200 uf caps.