http://img104.imageshack.us/img104/3557/1234uyq.jpg [Broken] Ok, there are a few calculations on this problem that I am having difficulty with. This is a past homework assignment which is why the answers are filled in. They are all correct. Anyways I approached the problem in this manner: V secondary peak = V2/ .707 The voltage drop across RL is ZZT IRL= ZZT/RL VC1P= V2P - Both forward biased diode drops. VC1 P-P (Ripple) = IDC / (2f * C) VRS= Vc1 dc - Vzt IRS= VRS /RS The three that I am having trouble with are: Vc1-dc , IZ, and VRL p-p (Ripple) Can anyone help me out? Thanks.