Start off with the TL021-RC transformer. What we are after is induction for this reason I am only going to use the primary coil. The primary coil has an impedance of 4Kohm secondary 600ohm and the resistance is 148 primary and 64 secondary. The primary coil has 1320 winding's and 440 on the secondary just in case you want to wind your own.
You can snip all of the secondary wires if you want to I usually bend them to the side and they will be covered by tape and shrink tubing in the final stages.