Hi Pete B, I have bought C1 and C2. However the shopkeeper told me that for the R1 and R2, she got to know whether they are 10W, 5W, 2W, 1W, 1/2W, 1/4W5% or 1/4W1%. Please advise me which one should I buy And is the green line in the photo a ground cable? Many thanks! Your recommended info:- Yes it is the 6 dB version from post #41 in this thread: 4.7K Version, these values are for RL = 47K or typically an EPL or tape monitor loop: R1 = 4.7 K, C1 = .0047 uF 6db: C2 = .068 uF R2 = 4.3K C1 can be two .01 uF green mylar caps from Radio Shack in series. C2 can be a .047 uF and .022 uF also from Radio Shack in parallel. Just so happens that I have a good supply of .068 uF, .01 uF, and 4.3K resistors here. I forgot to include them in my rush to send it to you. I'll get them off to you soon. Figured I'd wait to see how you liked it.